diff --git a/bower.json b/bower.json
index 73fbb6a9..113f859d 100644
--- a/bower.json
+++ b/bower.json
@@ -1,7 +1,7 @@
 {
   "name": "jquery.fancytree",
   "description": "Fancytree is a JavaScript tree view plugin for jQuery with support for persistence, keyboard, checkboxes, drag'n'drop, and lazy loading.",
-  "version": "2.4.1-0",
+  "version": "2.4.1",
   "main": [
     "dist/jquery.fancytree-all.min.js"
   ],
diff --git a/dist/jquery.fancytree-all.js b/dist/jquery.fancytree-all.js
index 92603b76..31215c08 100644
--- a/dist/jquery.fancytree-all.js
+++ b/dist/jquery.fancytree-all.js
@@ -7,8 +7,8 @@
  * Released under the MIT license
  * https://github.com/mar10/fancytree/wiki/LicenseInfo
  *
- * @version 2.4.0
- * @date 2014-09-21T13:14
+ * @version 2.4.1
+ * @date 2014-09-23T19:33
  */
 
 /** Core Fancytree module.
@@ -844,7 +844,7 @@ FancytreeNode.prototype = /** @lends FancytreeNode# */{
 			}
 			return true;
 		}
-		return ( this.children && this.children.length );
+		return !!( this.children && this.children.length );
 	},
 	/** Return true if node has keyboard focus.
 	 * @returns {boolean}
@@ -3905,7 +3905,7 @@ $.extend($.ui.fancytree,
 	/** @lends Fancytree_Static# */
 	{
 	/** @type {string} */
-	version: "2.4.0",      // Set to semver by 'grunt release'
+	version: "2.4.1",      // Set to semver by 'grunt release'
 	/** @type {string} */
 	buildType: "production", // Set to 'production' by 'grunt build'
 	/** @type {int} */
@@ -4204,8 +4204,8 @@ $.extend($.ui.fancytree,
  * Released under the MIT license
  * https://github.com/mar10/fancytree/wiki/LicenseInfo
  *
- * @version 2.4.0
- * @date 2014-09-21T13:14
+ * @version 2.4.1
+ * @date 2014-09-23T19:33
  */
 
 // To keep the global namespace clean, we wrap everything in a closure
@@ -4380,8 +4380,8 @@ $.ui.fancytree.registerExtension({
  * Released under the MIT license
  * https://github.com/mar10/fancytree/wiki/LicenseInfo
  *
- * @version 2.4.0
- * @date 2014-09-21T13:14
+ * @version 2.4.1
+ * @date 2014-09-23T19:33
  */
 
 ;(function($, window, document, undefined) {
@@ -4826,8 +4826,8 @@ $.ui.fancytree.registerExtension({
  * Released under the MIT license
  * https://github.com/mar10/fancytree/wiki/LicenseInfo
  *
- * @version 2.4.0
- * @date 2014-09-21T13:14
+ * @version 2.4.1
+ * @date 2014-09-23T19:33
  */
 
 ;(function($, window, document, undefined) {
@@ -5370,8 +5370,8 @@ $.ui.fancytree.registerExtension({
  * Released under the MIT license
  * https://github.com/mar10/fancytree/wiki/LicenseInfo
  *
- * @version 2.4.0
- * @date 2014-09-21T13:14
+ * @version 2.4.1
+ * @date 2014-09-23T19:33
  */
 
 ;(function($, window, document, undefined) {
@@ -5716,8 +5716,8 @@ $.ui.fancytree.registerExtension({
  * Released under the MIT license
  * https://github.com/mar10/fancytree/wiki/LicenseInfo
  *
- * @version 2.4.0
- * @date 2014-09-21T13:14
+ * @version 2.4.1
+ * @date 2014-09-23T19:33
  */
 
 ;(function($, window, document, undefined) {
@@ -5878,8 +5878,8 @@ $.ui.fancytree.registerExtension({
  * Released under the MIT license
  * https://github.com/mar10/fancytree/wiki/LicenseInfo
  *
- * @version 2.4.0
- * @date 2014-09-21T13:14
+ * @version 2.4.1
+ * @date 2014-09-23T19:33
  */
 
 ;(function($, window, document, undefined) {
@@ -6011,8 +6011,8 @@ $.ui.fancytree.registerExtension({
  * Released under the MIT license
  * https://github.com/mar10/fancytree/wiki/LicenseInfo
  *
- * @version 2.4.0
- * @date 2014-09-21T13:14
+ * @version 2.4.1
+ * @date 2014-09-23T19:33
  */
 
 ;(function($, window, document, undefined) {
@@ -6213,8 +6213,8 @@ $.ui.fancytree.registerExtension({
  * Released under the MIT license
  * https://github.com/mar10/fancytree/wiki/LicenseInfo
  *
- * @version 2.4.0
- * @date 2014-09-21T13:14
+ * @version 2.4.1
+ * @date 2014-09-23T19:33
  */
 
 ;(function($, window, document, undefined) {
@@ -6545,8 +6545,8 @@ $.ui.fancytree.registerExtension({
  * Released under the MIT license
  * https://github.com/mar10/fancytree/wiki/LicenseInfo
  *
- * @version 2.4.0
- * @date 2014-09-21T13:14
+ * @version 2.4.1
+ * @date 2014-09-23T19:33
  */
 
 ;(function($, window, document, undefined) {
@@ -6902,8 +6902,8 @@ $.ui.fancytree.registerExtension({
  * Released under the MIT license
  * https://github.com/mar10/fancytree/wiki/LicenseInfo
  *
- * @version 2.4.0
- * @date 2014-09-21T13:14
+ * @version 2.4.1
+ * @date 2014-09-23T19:33
  */
 
 ;(function($, window, document, undefined) {
diff --git a/dist/jquery.fancytree-all.min.js b/dist/jquery.fancytree-all.min.js
index 1bef8d8e..1f54dd53 100644
--- a/dist/jquery.fancytree-all.min.js
+++ b/dist/jquery.fancytree-all.min.js
@@ -1,4 +1,4 @@
-/*! jQuery Fancytree Plugin - 2.4.0 - 2014-09-21T13:14
+/*! jQuery Fancytree Plugin - 2.4.1 - 2014-09-23T19:33
   * https://github.com/mar10/fancytree
   * Copyright (c) 2014 Martin Wendt; Licensed MIT */
 (function( factory ) {
@@ -10,8 +10,8 @@
 }(function( $ ) {
 
 
-!function(a,b,c,d){"use strict";function e(b){b=b||"",a.error("Not implemented: "+b)}function f(b,c){b||(c=c?": "+c:"",a.error("Fancytree assertion failed"+c))}function g(a,c){var d,e,f=b.console?b.console[a]:null;if(f)if(f.apply)f.apply(b.console,c);else{for(e="",d=0;d<c.length;d++)e+=c[d];f(e)}}function h(a){return!(!a.tree||a.statusNodeType===d)}function i(b){var c,d,e,f=a.map(a.trim(b).split("."),function(a){return parseInt(a,10)}),g=a.map(Array.prototype.slice.call(arguments,1),function(a){return parseInt(a,10)});for(c=0;c<g.length;c++)if(d=f[c]||0,e=g[c]||0,d!==e)return d>e;return!0}function j(a,b,c,d,e){var f=function(){var c=b[a],f=d[a],g=b.ext[e],h=function(){return c.apply(b,arguments)};return function(){var a=b._local,c=b._super;try{return b._local=g,b._super=h,f.apply(b,arguments)}finally{b._local=a,b._super=c}}}();return f}function k(b,c,d,e){for(var f in d)"function"==typeof d[f]?"function"==typeof b[f]?b[f]=j(f,b,c,d,e):"_"===f.charAt(0)?b.ext[e][f]=j(f,b,c,d,e):a.error("Could not override tree."+f+". Use prefix '_' to create tree."+e+"._"+f):"options"!==f&&(b.ext[e][f]=d[f])}function l(b,c){return b===d?a.Deferred(function(){this.resolve()}).promise():a.Deferred(function(){this.resolveWith(b,c)}).promise()}function m(b,c){return b===d?a.Deferred(function(){this.reject()}).promise():a.Deferred(function(){this.rejectWith(b,c)}).promise()}function n(a,b){return function(){a.resolveWith(b)}}function o(b){var c=a.extend({},b.data()),d=c.json;return delete c.fancytree,d&&(delete c.json,c=a.extend(c,d)),c}function p(a){return a=a.toLowerCase(),function(b){return b.title.toLowerCase().indexOf(a)>=0}}function q(b,c){var d,e,g,h;for(this.parent=b,this.tree=b.tree,this.ul=null,this.li=null,this.statusNodeType=null,this._isLoading=!1,this._error=null,this.data={},d=0,e=x.length;e>d;d++)g=x[d],this[g]=c[g];c.data&&a.extend(this.data,c.data);for(g in c)y[g]||a.isFunction(c[g])||z[g]||(this.data[g]=c[g]);null==this.key?this.tree.options.defaultKey?(this.key=this.tree.options.defaultKey(this),f(this.key,"defaultKey() must return a unique key")):this.key="_"+t._nextNodeKey++:this.key=""+this.key,c.active&&(f(null===this.tree.activeNode,"only one active node allowed"),this.tree.activeNode=this),c.selected&&(this.tree.lastSelectedNode=this),this.children=null,h=c.children,h&&h.length&&this._setChildren(h),this.tree._callHook("treeRegisterNode",this.tree,!0,this)}function r(b){this.widget=b,this.$div=b.element,this.options=b.options,this.options&&a.isFunction(this.options.lazyload)&&(a.isFunction(this.options.lazyLoad)||(this.options.lazyLoad=function(){t.warn("The 'lazyload' event is deprecated since 2014-02-25. Use 'lazyLoad' (with uppercase L) instead."),b.options.lazyload.apply(this,arguments)})),this.options&&a.isFunction(this.options.loaderror)&&a.error("The 'loaderror' event was renamed since 2014-07-03. Use 'loadError' (with uppercase E) instead."),this.ext={},this.data=o(this.$div),this._id=null==this.options.id?a.ui.fancytree._nextId++:this.options.id,this._ns=".fancytree-"+this._id,this.activeNode=null,this.focusNode=null,this._hasFocus=null,this.lastSelectedNode=null,this.systemFocusElement=null,this.statusClassPropName="span",this.ariaPropName="li",this.nodeContainerAttrName="li",this.$div.find(">ul.fancytree-container").remove();var c,d={tree:this};this.rootNode=new q(d,{title:"root",key:"root_"+this._id,children:null,expanded:!0}),this.rootNode.parent=null,c=a("<ul>",{"class":"ui-fancytree fancytree-container"}).appendTo(this.$div),this.$container=c,this.rootNode.ul=c[0],null==this.options.debugLevel&&(this.options.debugLevel=t.debugLevel),this.$container.attr("tabindex",this.options.tabbable?"0":"-1"),this.options.aria&&this.$container.attr("role","tree").attr("aria-multiselectable",!0)}if(a.ui.fancytree&&a.ui.fancytree.version)return void a.ui.fancytree.warn("Fancytree: ignored duplicate include");var s,t=null,u={"&":"&amp;","<":"&lt;",">":"&gt;",'"':"&quot;","'":"&#39;","/":"&#x2F;"},v="active expanded focus folder hideCheckbox lazy selected unselectable".split(" "),w={},x="expanded extraClasses folder hideCheckbox key lazy refKey selected title tooltip unselectable".split(" "),y={},z={active:!0,children:!0,data:!0,focus:!0};for(s=0;s<v.length;s++)w[v[s]]=!0;for(s=0;s<x.length;s++)y[x[s]]=!0;q.prototype={_findDirectChild:function(a){var b,c,d=this.children;if(d)if("string"==typeof a){for(b=0,c=d.length;c>b;b++)if(d[b].key===a)return d[b]}else{if("number"==typeof a)return this.children[a];if(a.parent===this)return a}return null},_setChildren:function(a){f(a&&(!this.children||0===this.children.length),"only init supported"),this.children=[];for(var b=0,c=a.length;c>b;b++)this.children.push(new q(this,a[b]))},addChildren:function(b,c){var d,e,g,h=null,i=[];for(a.isPlainObject(b)&&(b=[b]),this.children||(this.children=[]),d=0,e=b.length;e>d;d++)i.push(new q(this,b[d]));return h=i[0],null==c?this.children=this.children.concat(i):(c=this._findDirectChild(c),g=a.inArray(c,this.children),f(g>=0,"insertBefore must be an existing child"),this.children.splice.apply(this.children,[g,0].concat(i))),(!this.parent||this.parent.ul||this.tr)&&this.render(),3===this.tree.options.selectMode&&this.fixSelection3FromEndNodes(),h},addNode:function(a,b){switch((b===d||"over"===b)&&(b="child"),b){case"after":return this.getParent().addChildren(a,this.getNextSibling());case"before":return this.getParent().addChildren(a,this);case"child":case"over":return this.addChildren(a)}f(!1,"Invalid mode: "+b)},appendSibling:function(a){return this.addNode(a,"after")},applyPatch:function(b){if(null===b)return this.remove(),l(this);var c,d,e,f={children:!0,expanded:!0,parent:!0};for(c in b)e=b[c],f[c]||a.isFunction(e)||(y[c]?this[c]=e:this.data[c]=e);return b.hasOwnProperty("children")&&(this.removeChildren(),b.children&&this._setChildren(b.children)),this.isVisible()&&(this.renderTitle(),this.renderStatus()),d=b.hasOwnProperty("expanded")?this.setExpanded(b.expanded):l(this)},collapseSiblings:function(){return this.tree._callHook("nodeCollapseSiblings",this)},copyTo:function(a,b,c){return a.addNode(this.toDict(!0,c),b)},countChildren:function(a){var b,c,d,e=this.children;if(!e)return 0;if(d=e.length,a!==!1)for(b=0,c=d;c>b;b++)d+=e[b].countChildren();return d},debug:function(){this.tree.options.debugLevel>=2&&(Array.prototype.unshift.call(arguments,this.toString()),g("debug",arguments))},discard:function(){return this.warn("FancytreeNode.discard() is deprecated since 2014-02-16. Use .resetLazy() instead."),this.resetLazy()},findAll:function(b){b=a.isFunction(b)?b:p(b);var c=[];return this.visit(function(a){b(a)&&c.push(a)}),c},findFirst:function(b){b=a.isFunction(b)?b:p(b);var c=null;return this.visit(function(a){return b(a)?(c=a,!1):void 0}),c},_changeSelectStatusAttrs:function(a){var b=!1;switch(a){case!1:b=this.selected||this.partsel,this.selected=!1,this.partsel=!1;break;case!0:b=!this.selected||!this.partsel,this.selected=!0,this.partsel=!0;break;case d:b=this.selected||!this.partsel,this.selected=!1,this.partsel=!0;break;default:f(!1,"invalid state: "+a)}return b&&this.renderStatus(),b},fixSelection3AfterClick:function(){var a=this.isSelected();this.visit(function(b){b._changeSelectStatusAttrs(a)}),this.fixSelection3FromEndNodes()},fixSelection3FromEndNodes:function(){function a(b){var c,e,f,g,h,i,j,k=b.children;if(k&&k.length){for(i=!0,j=!1,c=0,e=k.length;e>c;c++)f=k[c],g=a(f),g!==!1&&(j=!0),g!==!0&&(i=!1);h=i?!0:j?d:!1}else h=!!b.selected;return b._changeSelectStatusAttrs(h),h}f(3===this.tree.options.selectMode,"expected selectMode 3"),a(this),this.visitParents(function(a){var b,c,e,f,g=a.children,h=!0,i=!1;for(b=0,c=g.length;c>b;b++)e=g[b],(e.selected||e.partsel)&&(i=!0),e.unselectable||e.selected||(h=!1);f=h?!0:i?d:!1,a._changeSelectStatusAttrs(f)})},fromDict:function(b){for(var c in b)y[c]?this[c]=b[c]:"data"===c?a.extend(this.data,b.data):a.isFunction(b[c])||z[c]||(this.data[c]=b[c]);b.children&&(this.removeChildren(),this.addChildren(b.children)),this.renderTitle()},getChildren:function(){return this.hasChildren()===d?d:this.children},getFirstChild:function(){return this.children?this.children[0]:null},getIndex:function(){return a.inArray(this,this.parent.children)},getIndexHier:function(b){b=b||".";var c=[];return a.each(this.getParentList(!1,!0),function(a,b){c.push(b.getIndex()+1)}),c.join(b)},getKeyPath:function(a){var b=[],c=this.tree.options.keyPathSeparator;return this.visitParents(function(a){a.parent&&b.unshift(a.key)},!a),c+b.join(c)},getLastChild:function(){return this.children?this.children[this.children.length-1]:null},getLevel:function(){for(var a=0,b=this.parent;b;)a++,b=b.parent;return a},getNextSibling:function(){if(this.parent){var a,b,c=this.parent.children;for(a=0,b=c.length-1;b>a;a++)if(c[a]===this)return c[a+1]}return null},getParent:function(){return this.parent},getParentList:function(a,b){for(var c=[],d=b?this:this.parent;d;)(a||d.parent)&&c.unshift(d),d=d.parent;return c},getPrevSibling:function(){if(this.parent){var a,b,c=this.parent.children;for(a=1,b=c.length;b>a;a++)if(c[a]===this)return c[a-1]}return null},hasChildren:function(){return this.lazy?null==this.children?d:0===this.children.length?!1:1===this.children.length&&this.children[0].isStatusNode()?d:!0:this.children&&this.children.length},hasFocus:function(){return this.tree.hasFocus()&&this.tree.focusNode===this},info:function(){this.tree.options.debugLevel>=1&&(Array.prototype.unshift.call(arguments,this.toString()),g("info",arguments))},isActive:function(){return this.tree.activeNode===this},isChildOf:function(a){return this.parent&&this.parent===a},isDescendantOf:function(a){if(!a||a.tree!==this.tree)return!1;for(var b=this.parent;b;){if(b===a)return!0;b=b.parent}return!1},isExpanded:function(){return!!this.expanded},isFirstSibling:function(){var a=this.parent;return!a||a.children[0]===this},isFolder:function(){return!!this.folder},isLastSibling:function(){var a=this.parent;return!a||a.children[a.children.length-1]===this},isLazy:function(){return!!this.lazy},isLoaded:function(){return!this.lazy||this.hasChildren()!==d},isLoading:function(){return!!this._isLoading},isRoot:function(){return this.isRootNode()},isRootNode:function(){return this.tree.rootNode===this},isSelected:function(){return!!this.selected},isStatusNode:function(){return!!this.statusNodeType},isTopLevel:function(){return this.tree.rootNode===this.parent},isUndefined:function(){return this.hasChildren()===d},isVisible:function(){var a,b,c=this.getParentList(!1,!1);for(a=0,b=c.length;b>a;a++)if(!c[a].expanded)return!1;return!0},lazyLoad:function(a){return this.warn("FancytreeNode.lazyLoad() is deprecated since 2014-02-16. Use .load() instead."),this.load(a)},load:function(a){var b,c,d=this;return a||this.isUndefined()?(this.isLoaded()&&this.resetLazy(),c=this.tree._triggerNodeEvent("lazyLoad",this),c===!1?l(this):(f("boolean"!=typeof c,"lazyLoad event must return source in data.result"),b=this.tree._callHook("nodeLoadChildren",this,c),this.expanded&&b.always(function(){d.render()}),b)):l(this)},makeVisible:function(b){var c,d=this,e=[],f=new a.Deferred,g=this.getParentList(!1,!1),h=g.length,i=!(b&&b.noAnimation===!0),j=!(b&&b.scrollIntoView===!1);for(c=h-1;c>=0;c--)e.push(g[c].setExpanded(!0,b));return a.when.apply(a,e).done(function(){j?d.scrollIntoView(i).done(function(){f.resolve()}):f.resolve()}),f.promise()},moveTo:function(b,c,e){(c===d||"over"===c)&&(c="child");var g,h=this.parent,i="child"===c?b:b.parent;if(this!==b){if(!this.parent)throw"Cannot move system root";if(i.isDescendantOf(this))throw"Cannot move a node to its own descendant";if(1===this.parent.children.length){if(this.parent===i)return;this.parent.children=this.parent.lazy?[]:null,this.parent.expanded=!1}else g=a.inArray(this,this.parent.children),f(g>=0),this.parent.children.splice(g,1);if(this.parent=i,i.hasChildren())switch(c){case"child":i.children.push(this);break;case"before":g=a.inArray(b,i.children),f(g>=0),i.children.splice(g,0,this);break;case"after":g=a.inArray(b,i.children),f(g>=0),i.children.splice(g+1,0,this);break;default:throw"Invalid mode "+c}else i.children=[this];e&&b.visit(e,!0),this.tree!==b.tree&&(this.warn("Cross-tree moveTo is experimantal!"),this.visit(function(a){a.tree=b.tree},!0)),h.isDescendantOf(i)||h.render(),i.isDescendantOf(h)||i===h||i.render()}},navigate:function(b,c){function d(d){if(d){try{d.makeVisible()}catch(e){}return a(d.span).is(":visible")?c===!1?d.setFocus():d.setActive():(d.debug("Navigate: skipping hidden node"),void d.navigate(b,c))}}var e,f,g=!0,h=a.ui.keyCode,i=null;switch(b){case h.BACKSPACE:this.parent&&this.parent.parent&&d(this.parent);break;case h.LEFT:this.expanded?(this.setExpanded(!1),d(this)):this.parent&&this.parent.parent&&d(this.parent);break;case h.RIGHT:this.expanded||!this.children&&!this.lazy?this.children&&this.children.length&&d(this.children[0]):(this.setExpanded(),d(this));break;case h.UP:for(i=this.getPrevSibling();i&&i.expanded&&i.children&&i.children.length;)i=i.children[i.children.length-1];!i&&this.parent&&this.parent.parent&&(i=this.parent),d(i);break;case h.DOWN:if(this.expanded&&this.children&&this.children.length)i=this.children[0];else for(f=this.getParentList(!1,!0),e=f.length-1;e>=0&&!(i=f[e].getNextSibling());e--);d(i);break;default:g=!1}},remove:function(){return this.parent.removeChild(this)},removeChild:function(a){return this.tree._callHook("nodeRemoveChild",this,a)},removeChildren:function(){return this.tree._callHook("nodeRemoveChildren",this)},render:function(a,b){return this.tree._callHook("nodeRender",this,a,b)},renderTitle:function(){return this.tree._callHook("nodeRenderTitle",this)},renderStatus:function(){return this.tree._callHook("nodeRenderStatus",this)},resetLazy:function(){this.removeChildren(),this.expanded=!1,this.lazy=!0,this.children=d,this.renderStatus()},scheduleAction:function(a,b){this.tree.timer&&clearTimeout(this.tree.timer),this.tree.timer=null;var c=this;switch(a){case"cancel":break;case"expand":this.tree.timer=setTimeout(function(){c.tree.debug("setTimeout: trigger expand"),c.setExpanded(!0)},b);break;case"activate":this.tree.timer=setTimeout(function(){c.tree.debug("setTimeout: trigger activate"),c.setActive(!0)},b);break;default:throw"Invalid mode "+a}},scrollIntoView:function(e,g){g!==d&&h(g)&&(this.warn("scrollIntoView() with 'topNode' option is deprecated since 2014-05-08. Use 'options.topNode' instead."),g={topNode:g});var i,j,k,l,m=a.extend({effects:e===!0?{duration:200,queue:!1}:e,scrollOfs:this.tree.options.scrollOfs,scrollParent:this.tree.options.scrollParent||this.tree.$container,topNode:null},g),n=new a.Deferred,o=this,p=a(this.span).height(),q=a(m.scrollParent),r=m.scrollOfs.top||0,s=m.scrollOfs.bottom||0,t=q.height(),u=q.scrollTop(),v=q,w=q[0]===b,x=m.topNode||null,y=null;return f(a(this.span).is(":visible"),"scrollIntoView node is invisible"),w?(j=a(this.span).offset().top,i=x&&x.span?a(x.span).offset().top:0,v=a("html,body")):(f(q[0]!==c&&q[0]!==c.body,"scrollParent should be an simple element or `window`, not document or body."),l=q.offset().top,j=a(this.span).offset().top-l+u,i=x?a(x.span).offset().top-l+u:0,k=Math.max(0,q.innerHeight()-q[0].clientHeight),t-=k),u+r>j?y=j-r:j+p>u+t-s&&(y=j+p-t+s,x&&(f(x.isRoot()||a(x.span).is(":visible"),"topNode must be 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d,e,f,g={},h=this;if(a.each(x,function(a,b){(h[b]||h[b]===!1)&&(g[b]=h[b])}),a.isEmptyObject(this.data)||(g.data=a.extend({},this.data),a.isEmptyObject(g.data)&&delete g.data),c&&c(g),b&&this.hasChildren())for(g.children=[],d=0,e=this.children.length;e>d;d++)f=this.children[d],f.isStatusNode()||g.children.push(f.toDict(!0,c));return g},toggleExpanded:function(){return this.tree._callHook("nodeToggleExpanded",this)},toggleSelected:function(){return this.tree._callHook("nodeToggleSelected",this)},toString:function(){return"<FancytreeNode(#"+this.key+", '"+this.title+"')>"},visit:function(a,b){var c,d,e=!0,f=this.children;if(b===!0&&(e=a(this),e===!1||"skip"===e))return e;if(f)for(c=0,d=f.length;d>c&&(e=f[c].visit(a,!0),e!==!1);c++);return e},visitAndLoad:function(b,c,d){var e,f,g,h=this;return b&&c===!0&&(f=b(h),f===!1||"skip"===f)?d?f:l():h.children||h.lazy?(e=new a.Deferred,g=[],h.load().done(function(){for(var c=0,d=h.children.length;d>c;c++){if(f=h.children[c].visitAndLoad(b,!0,!0),f===!1){e.reject();break}"skip"!==f&&g.push(f)}a.when.apply(this,g).then(function(){e.resolve()})}),e.promise()):l()},visitParents:function(a,b){if(b&&a(this)===!1)return!1;for(var c=this.parent;c;){if(a(c)===!1)return!1;c=c.parent}return!0},warn:function(){Array.prototype.unshift.call(arguments,this.toString()),g("warn",arguments)}},r.prototype={_makeHookContext:function(b,c,e){var f,g;return b.node!==d?(c&&b.originalEvent!==c&&a.error("invalid args"),f=b):b.tree?(g=b.tree,f={node:b,tree:g,widget:g.widget,options:g.widget.options,originalEvent:c}):b.widget?f={node:null,tree:b,widget:b.widget,options:b.widget.options,originalEvent:c}:a.error("invalid args"),e&&a.extend(f,e),f},_callHook:function(b,c){var d=this._makeHookContext(c),e=this[b],f=Array.prototype.slice.call(arguments,2);return a.isFunction(e)||a.error("_callHook('"+b+"') is not a 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this.rootNode.countChildren()},debug:function(){this.options.debugLevel>=2&&(Array.prototype.unshift.call(arguments,this.toString()),g("debug",arguments))},generateFormElements:function(b,c,d){var e,f=b!==!1?"ft_"+this._id+"[]":b,g=c!==!1?"ft_"+this._id+"_active":c,h="fancytree_result_"+this._id,i=a("#"+h);d="boolean"==typeof d?d:3===this.options.selectMode,i.length?i.empty():i=a("<div>",{id:h}).hide().insertAfter(this.$container),f&&(e=this.getSelectedNodes(d),a.each(e,function(b,c){i.append(a("<input>",{type:"checkbox",name:f,value:c.key,checked:!0}))})),g&&this.activeNode&&i.append(a("<input>",{type:"radio",name:g,value:this.activeNode.key,checked:!0}))},getActiveNode:function(){return this.activeNode},getFirstChild:function(){return this.rootNode.getFirstChild()},getFocusNode:function(){return this.focusNode},getNodeByKey:function(a,b){var d,e;return!b&&(d=c.getElementById(this.options.idPrefix+a))?d.ftnode?d.ftnode:null:(b=b||this.rootNode,e=null,b.visit(function(b){return b.key===a?(e=b,!1):void 0},!0),e)},getRootNode:function(){return this.rootNode},getSelectedNodes:function(a){var b=[];return this.rootNode.visit(function(c){return c.selected&&(b.push(c),a===!0)?"skip":void 0}),b},hasFocus:function(){return!!this._hasFocus},info:function(){this.options.debugLevel>=1&&(Array.prototype.unshift.call(arguments,this.toString()),g("info",arguments))},loadKeyPath:function(b,c,e){function f(a,b,d){c.call(r,b,"loading"),b.load().done(function(){r.loadKeyPath.call(r,l[a],c,b).always(n(d,r))}).fail(function(){r.warn("loadKeyPath: error loading: "+a+" (parent: "+o+")"),c.call(r,b,"error"),d.reject()})}var g,h,i,j,k,l,m,o,p,q=this.options.keyPathSeparator,r=this;for(a.isArray(b)||(b=[b]),l={},i=0;i<b.length;i++)for(o=e||this.rootNode,j=b[i],j.charAt(0)===q&&(j=j.substr(1)),p=j.split(q);p.length;){if(k=p.shift(),m=o._findDirectChild(k),!m){this.warn("loadKeyPath: key not found: "+k+" (parent: "+o+")"),c.call(this,k,"error");break}if(0===p.length){c.call(this,m,"ok");break}if(m.lazy&&m.hasChildren()===d){c.call(this,m,"loaded"),l[k]?l[k].push(p.join(q)):l[k]=[p.join(q)];break}c.call(this,m,"loaded"),o=m}g=[];for(k in l)m=o._findDirectChild(k),h=new a.Deferred,g.push(h),f(k,m,h);return a.when.apply(a,g).promise()},reactivate:function(a){var b=this.activeNode;b&&(this.activeNode=null,b.setActive(),a&&b.setFocus())},reload:function(a){return this._callHook("treeClear",this),this._callHook("treeLoad",this,a)},render:function(a,b){return this.rootNode.render(a,b)},setFocus:function(a){return this._callHook("treeSetFocus",this,a)},toDict:function(a,b){var c=this.rootNode.toDict(!0,b);return a?c:c.children},toString:function(){return"<Fancytree(#"+this._id+")>"},_triggerNodeEvent:function(a,b,c,e){var f=this._makeHookContext(b,c,e),g=this.widget._trigger(a,c,f);return g!==!1&&f.result!==d?f.result:g},_triggerTreeEvent:function(a,b){var c=this._makeHookContext(this,b),e=this.widget._trigger(a,b,c);return e!==!1&&c.result!==d?c.result:e},visit:function(a){return this.rootNode.visit(a,!1)},warn:function(){Array.prototype.unshift.call(arguments,this.toString()),g("warn",arguments)}},a.extend(r.prototype,{nodeClick:function(a){var b,c,d=a.originalEvent,e=a.targetType,f=a.node;if("expander"===e)this._callHook("nodeToggleExpanded",a);else if("checkbox"===e)this._callHook("nodeToggleSelected",a),this._callHook("nodeSetFocus",a,!0);else{if(c=!1,b=!0,f.folder)switch(a.options.clickFolderMode){case 2:c=!0,b=!1;break;case 3:b=!0,c=!0}b&&(this.nodeSetFocus(a),this._callHook("nodeSetActive",a,!0)),c&&this._callHook("nodeToggleExpanded",a)}"a"===d.target.localName&&"fancytree-title"===d.target.className&&d.preventDefault()},nodeCollapseSiblings:function(a,b){var c,d,e,f=a.node;if(f.parent)for(c=f.parent.children,d=0,e=c.length;e>d;d++)c[d]!==f&&c[d].expanded&&this._callHook("nodeSetExpanded",c[d],!1,b)},nodeDblclick:function(a){"title"===a.targetType&&4===a.options.clickFolderMode&&this._callHook("nodeToggleExpanded",a),"title"===a.targetType&&a.originalEvent.preventDefault()},nodeKeydown:function(b){var c,d=b.originalEvent,e=b.node,f=b.tree,g=b.options,h=!0,i=!(d.ctrlKey||!g.autoActivate),j=a.ui.keyCode;switch(e||(this.rootNode.getFirstChild().setFocus(),e=b.node=this.focusNode,e.debug("Keydown force focus on first node")),d.which){case j.NUMPAD_ADD:case 187:f.nodeSetExpanded(b,!0);break;case j.NUMPAD_SUBTRACT:case 189:f.nodeSetExpanded(b,!1);break;case j.SPACE:g.checkbox?f.nodeToggleSelected(b):f.nodeSetActive(b,!0);break;case j.ENTER:f.nodeSetActive(b,!0);break;case j.BACKSPACE:case j.LEFT:case j.RIGHT:case j.UP:case j.DOWN:c=e.navigate(d.which,i);break;default:h=!1}h&&d.preventDefault()},nodeLoadChildren:function(b,c){var d,e,g,h=b.tree,i=b.node;return a.isFunction(c)&&(c=c()),c.url&&(d=a.extend({},b.options.ajax,c),d.debugDelay?(e=d.debugDelay,a.isArray(e)&&(e=e[0]+Math.random()*(e[1]-e[0])),i.debug("nodeLoadChildren waiting debug delay "+Math.round(e)+"ms"),d.debugDelay=!1,g=a.Deferred(function(b){setTimeout(function(){a.ajax(d).done(function(){b.resolveWith(this,arguments)}).fail(function(){b.rejectWith(this,arguments)})},e)})):g=a.ajax(d),c=new a.Deferred,g.done(function(d){var e,f;if("string"==typeof d&&a.error("Ajax request returned a string (did you get the JSON dataType wrong?)."),b.options.postProcess){if(f=h._triggerNodeEvent("postProcess",b,b.originalEvent,{response:d,error:null,dataType:this.dataType}),f.error)return e=a.isPlainObject(f.error)?f.error:{message:f.error},e=h._makeHookContext(i,null,e),void c.rejectWith(this,[e]);d=a.isArray(f)?f:d}else d&&d.hasOwnProperty("d")&&b.options.enableAspx&&(d="string"==typeof d.d?a.parseJSON(d.d):d.d);c.resolveWith(this,[d])}).fail(function(a,b,d){var e=h._makeHookContext(i,null,{error:a,args:Array.prototype.slice.call(arguments),message:d,details:a.status+": "+d});c.rejectWith(this,[e])})),a.isFunction(c.promise)&&(f(!i.isLoading()),h.nodeSetStatus(b,"loading"),c.done(function(){h.nodeSetStatus(b,"ok")}).fail(function(a){var c;c=a.node&&a.error&&a.message?a:h._makeHookContext(i,null,{error:a,args:Array.prototype.slice.call(arguments),message:a?a.message||a.toString():""}),h._triggerNodeEvent("loadError",c,null)!==!1&&h.nodeSetStatus(b,"error",c.message,c.details)})),a.when(c).done(function(b){var c;a.isPlainObject(b)&&(f(a.isArray(b.children),"source must contain (or be) an array of children"),f(i.isRoot(),"source may only be an object for root nodes"),c=b,b=b.children,delete c.children,a.extend(h.data,c)),f(a.isArray(b),"expected array of children"),i._setChildren(b),h._triggerNodeEvent("loadChildren",i)})},nodeLoadKeyPath:function(){},nodeRemoveChild:function(b,c){var d,e=b.node,g=b.options,h=a.extend({},b,{node:c}),i=e.children;return 1===i.length?(f(c===i[0]),this.nodeRemoveChildren(b)):(this.activeNode&&(c===this.activeNode||this.activeNode.isDescendantOf(c))&&this.activeNode.setActive(!1),this.focusNode&&(c===this.focusNode||this.focusNode.isDescendantOf(c))&&(this.focusNode=null),this.nodeRemoveMarkup(h),this.nodeRemoveChildren(h),d=a.inArray(c,i),f(d>=0),c.visit(function(a){a.parent=null},!0),this._callHook("treeRegisterNode",this,!1,c),g.removeNode&&g.removeNode.call(b.tree,{type:"removeNode"},h),void i.splice(d,1))},nodeRemoveChildMarkup:function(b){var c=b.node;c.ul&&(c.isRoot()?a(c.ul).empty():(a(c.ul).remove(),c.ul=null),c.visit(function(a){a.li=a.ul=null}))},nodeRemoveChildren:function(b){var c,d=b.tree,e=b.node,f=e.children,g=b.options;f&&(this.activeNode&&this.activeNode.isDescendantOf(e)&&this.activeNode.setActive(!1),this.focusNode&&this.focusNode.isDescendantOf(e)&&(this.focusNode=null),this.nodeRemoveChildMarkup(b),c=a.extend({},b),e.visit(function(a){a.parent=null,d._callHook("treeRegisterNode",d,!1,a),g.removeNode&&(c.node=a,g.removeNode.call(b.tree,{type:"removeNode"},c))}),e.children=e.lazy?[]:null,this.nodeRenderStatus(b))},nodeRemoveMarkup:function(b){var c=b.node;c.li&&(a(c.li).remove(),c.li=null),this.nodeRemoveChildMarkup(b)},nodeRender:function(b,d,e,g,h){var i,j,k,l,m,n,o,p=b.node,q=b.tree,r=b.options,s=r.aria,t=!1,u=p.parent,v=!u,w=p.children;if(v||u.ul){if(f(v||u.ul,"parent UL must exist"),v||(p.li&&(d||p.li.parentNode!==p.parent.ul)&&(p.li.parentNode!==p.parent.ul&&this.warn("unlink "+p+" (must be child of 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"+k,i),n=i.nextSibling,i.parentNode.removeChild(i),i=n):i=i.nextSibling;for(i=p.ul.firstChild,l=0,m=w.length-1;m>l;l++)j=w[l],k=i.ftnode,j!==k?p.ul.insertBefore(j.li,k.li):i=i.nextSibling}}else p.ul&&(this.warn("remove child markup for "+p),this.nodeRemoveChildMarkup(b));v||t&&u.ul.appendChild(p.li)}},nodeRenderTitle:function(a,b){var c,e,f,g,h,i,j=a.node,k=a.tree,l=a.options,m=l.aria,n=j.getLevel(),o=[],p=j.data.icon;b!==d&&(j.title=b),j.span&&(n<l.minExpandLevel?n>1&&(j.lazy||(j.expanded=!0),o.push(m?"<span role='button' class='fancytree-expander fancytree-expander-fixed'></span>":"<span class='fancytree-expander fancytree-expander-fixed''></span>")):o.push(m?"<span role='button' class='fancytree-expander'></span>":"<span class='fancytree-expander'></span>"),l.checkbox&&j.hideCheckbox!==!0&&!j.isStatusNode()&&o.push(m?"<span role='checkbox' class='fancytree-checkbox'></span>":"<span class='fancytree-checkbox'></span>"),g=m?" role='img'":"",(p===!0||p!==!1&&l.icons!==!1)&&(p&&"string"==typeof p?(p="/"===p.charAt(0)?p:(l.imagePath||"")+p,o.push("<img src='"+p+"' class='fancytree-icon' alt='' />")):(e=l.iconClass&&l.iconClass.call(k,j,a)||j.data.iconclass||null,o.push(e?"<span "+g+" class='fancytree-custom-icon "+e+"'></span>":"<span "+g+" class='fancytree-icon'></span>"))),f="",l.renderTitle&&(f=l.renderTitle.call(k,{type:"renderTitle"},a)||""),f||(i=j.tooltip?" title='"+j.tooltip.replace("'","&apos;")+"'":"",c=m?" id='ftal_"+j.key+"'":"",g=m?" role='treeitem'":"",h=l.titlesTabbable?" tabindex='0'":"",f="<span "+g+" class='fancytree-title'"+c+i+h+">"+j.title+"</span>"),o.push(f),j.span.innerHTML=o.join(""),this.nodeRenderStatus(a))},nodeRenderStatus:function(b){var c=b.node,d=b.tree,e=b.options,f=c.hasChildren(),g=c.isLastSibling(),h=e.aria,i=a(c.span).find(".fancytree-title"),j=e._classNames,k=[],l=c[d.statusClassPropName];l&&(k.push(j.node),d.activeNode===c&&k.push(j.active),d.focusNode===c?(k.push(j.focused),h&&i.attr("aria-activedescendant",!0)):h&&i.removeAttr("aria-activedescendant"),c.expanded?(k.push(j.expanded),h&&i.attr("aria-expanded",!0)):h&&i.removeAttr("aria-expanded"),c.folder&&k.push(j.folder),f!==!1&&k.push(j.hasChildren),g&&k.push(j.lastsib),c.lazy&&null==c.children&&k.push(j.lazy),c.partsel&&k.push(j.partsel),c._isLoading&&k.push(j.loading),c._error&&k.push(j.error),c.selected?(k.push(j.selected),h&&i.attr("aria-selected",!0)):h&&i.attr("aria-selected",!1),c.extraClasses&&k.push(c.extraClasses),k.push(f===!1?j.combinedExpanderPrefix+"n"+(g?"l":""):j.combinedExpanderPrefix+(c.expanded?"e":"c")+(c.lazy&&null==c.children?"d":"")+(g?"l":"")),k.push(j.combinedIconPrefix+(c.expanded?"e":"c")+(c.folder?"f":"")),l.className=k.join(" 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l(n);if(c&&!n.lazy&&!n.hasChildren())return l(n);if(!c&&n.getLevel()<p.minExpandLevel)return m(n,["locked"]);if(!r&&this._triggerNodeEvent("beforeExpand",n,b.originalEvent)===!1)return m(n,["rejected"]);if(q||n.isVisible()||(q=e.noAnimation=!0),g=new a.Deferred,c&&!n.expanded&&p.autoCollapse){j=n.getParentList(!1,!0),k=p.autoCollapse;
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("+d+") ":""),tooltip:e,extraClasses:"fancytree-statusnode-error"},c),h._isLoading=!1,h._error={message:d,details:e},h.renderStatus();break;default:a.error("invalid node status "+c)}},nodeToggleExpanded:function(a){return this.nodeSetExpanded(a,!a.node.expanded)},nodeToggleSelected:function(a){return this.nodeSetSelected(a,!a.node.selected)},treeClear:function(a){var b=a.tree;b.activeNode=null,b.focusNode=null,b.$div.find(">ul.fancytree-container").empty(),b.rootNode.children=null},treeCreate:function(){},treeDestroy:function(){},treeInit:function(a){this.treeLoad(a)},treeLoad:function(b,c){var d,f,g,h=b.tree,i=b.widget.element,j=a.extend({},b,{node:this.rootNode});if(h.rootNode.children&&this.treeClear(b),c=c||this.options.source)"string"==typeof c&&e();else switch(d=i.data("type")||"html"){case"html":f=i.find(">ul:first"),f.addClass("ui-fancytree-source 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c=this._makeHookContext(this,b),e=this.widget._trigger(a,b,c);return e!==!1&&c.result!==d?c.result:e},visit:function(a){return this.rootNode.visit(a,!1)},warn:function(){Array.prototype.unshift.call(arguments,this.toString()),g("warn",arguments)}},a.extend(r.prototype,{nodeClick:function(a){var b,c,d=a.originalEvent,e=a.targetType,f=a.node;if("expander"===e)this._callHook("nodeToggleExpanded",a);else if("checkbox"===e)this._callHook("nodeToggleSelected",a),this._callHook("nodeSetFocus",a,!0);else{if(c=!1,b=!0,f.folder)switch(a.options.clickFolderMode){case 2:c=!0,b=!1;break;case 3:b=!0,c=!0}b&&(this.nodeSetFocus(a),this._callHook("nodeSetActive",a,!0)),c&&this._callHook("nodeToggleExpanded",a)}"a"===d.target.localName&&"fancytree-title"===d.target.className&&d.preventDefault()},nodeCollapseSiblings:function(a,b){var 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c,d=b.tree,e=b.node,f=e.children,g=b.options;f&&(this.activeNode&&this.activeNode.isDescendantOf(e)&&this.activeNode.setActive(!1),this.focusNode&&this.focusNode.isDescendantOf(e)&&(this.focusNode=null),this.nodeRemoveChildMarkup(b),c=a.extend({},b),e.visit(function(a){a.parent=null,d._callHook("treeRegisterNode",d,!1,a),g.removeNode&&(c.node=a,g.removeNode.call(b.tree,{type:"removeNode"},c))}),e.children=e.lazy?[]:null,this.nodeRenderStatus(b))},nodeRemoveMarkup:function(b){var c=b.node;c.li&&(a(c.li).remove(),c.li=null),this.nodeRemoveChildMarkup(b)},nodeRender:function(b,d,e,g,h){var i,j,k,l,m,n,o,p=b.node,q=b.tree,r=b.options,s=r.aria,t=!1,u=p.parent,v=!u,w=p.children;if(v||u.ul){if(f(v||u.ul,"parent UL must exist"),v||(p.li&&(d||p.li.parentNode!==p.parent.ul)&&(p.li.parentNode!==p.parent.ul&&this.warn("unlink "+p+" (must be child of 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role='img'":"",(p===!0||p!==!1&&l.icons!==!1)&&(p&&"string"==typeof p?(p="/"===p.charAt(0)?p:(l.imagePath||"")+p,o.push("<img src='"+p+"' class='fancytree-icon' alt='' />")):(e=l.iconClass&&l.iconClass.call(k,j,a)||j.data.iconclass||null,o.push(e?"<span "+g+" class='fancytree-custom-icon "+e+"'></span>":"<span "+g+" class='fancytree-icon'></span>"))),f="",l.renderTitle&&(f=l.renderTitle.call(k,{type:"renderTitle"},a)||""),f||(i=j.tooltip?" title='"+j.tooltip.replace("'","&apos;")+"'":"",c=m?" id='ftal_"+j.key+"'":"",g=m?" role='treeitem'":"",h=l.titlesTabbable?" tabindex='0'":"",f="<span "+g+" class='fancytree-title'"+c+i+h+">"+j.title+"</span>"),o.push(f),j.span.innerHTML=o.join(""),this.nodeRenderStatus(a))},nodeRenderStatus:function(b){var c=b.node,d=b.tree,e=b.options,f=c.hasChildren(),g=c.isLastSibling(),h=e.aria,i=a(c.span).find(".fancytree-title"),j=e._classNames,k=[],l=c[d.statusClassPropName];l&&(k.push(j.node),d.activeNode===c&&k.push(j.active),d.focusNode===c?(k.push(j.focused),h&&i.attr("aria-activedescendant",!0)):h&&i.removeAttr("aria-activedescendant"),c.expanded?(k.push(j.expanded),h&&i.attr("aria-expanded",!0)):h&&i.removeAttr("aria-expanded"),c.folder&&k.push(j.folder),f!==!1&&k.push(j.hasChildren),g&&k.push(j.lastsib),c.lazy&&null==c.children&&k.push(j.lazy),c.partsel&&k.push(j.partsel),c._isLoading&&k.push(j.loading),c._error&&k.push(j.error),c.selected?(k.push(j.selected),h&&i.attr("aria-selected",!0)):h&&i.attr("aria-selected",!1),c.extraClasses&&k.push(c.extraClasses),k.push(f===!1?j.combinedExpanderPrefix+"n"+(g?"l":""):j.combinedExpanderPrefix+(c.expanded?"e":"c")+(c.lazy&&null==c.children?"d":"")+(g?"l":"")),k.push(j.combinedIconPrefix+(c.expanded?"e":"c")+(c.folder?"f":"")),l.className=k.join(" "),c.li&&(c.li.className=g?j.lastsib:""))},nodeSetActive:function(b,c,d){d=d||{};var e,g=b.node,h=b.tree,i=b.options,j=d.noEvents===!0,k=g===h.activeNode;return c=c!==!1,k===c?l(g):c&&!j&&this._triggerNodeEvent("beforeActivate",g,b.originalEvent)===!1?m(g,["rejected"]):void(c?(h.activeNode&&(f(h.activeNode!==g,"node was active (inconsistency)"),e=a.extend({},b,{node:h.activeNode}),h.nodeSetActive(e,!1),f(null===h.activeNode,"deactivate was out of sync?")),i.activeVisible&&g.makeVisible({scrollIntoView:!1}),h.activeNode=g,h.nodeRenderStatus(b),h.nodeSetFocus(b),j||h._triggerNodeEvent("activate",g,b.originalEvent)):(f(h.activeNode===g,"node was not active (inconsistency)"),h.activeNode=null,this.nodeRenderStatus(b),j||b.tree._triggerNodeEvent("deactivate",g,b.originalEvent)))},nodeSetExpanded:function(b,c,e){e=e||{};var f,g,h,i,j,k,n=b.node,o=b.tree,p=b.options,q=e.noAnimation===!0,r=e.noEvents===!0;if(c=c!==!1,n.expanded&&c||!n.expanded&&!c)return l(n);if(c&&!n.lazy&&!n.hasChildren())return l(n);if(!c&&n.getLevel()<p.minExpandLevel)return m(n,["locked"]);if(!r&&this._triggerNodeEvent("beforeExpand",n,b.originalEvent)===!1)return m(n,["rejected"]);if(q||n.isVisible()||(q=e.noAnimation=!0),g=new a.Deferred,c&&!n.expanded&&p.autoCollapse){j=n.getParentList(!1,!0),k=p.autoCollapse;
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("+d+") ":""),tooltip:e,extraClasses:"fancytree-statusnode-wait"},c),h._isLoading=!0,h._error=null,h.renderStatus();break;case"error":g({title:i.options.strings.loadError+(d?" ("+d+") ":""),tooltip:e,extraClasses:"fancytree-statusnode-error"},c),h._isLoading=!1,h._error={message:d,details:e},h.renderStatus();break;default:a.error("invalid node status "+c)}},nodeToggleExpanded:function(a){return this.nodeSetExpanded(a,!a.node.expanded)},nodeToggleSelected:function(a){return this.nodeSetSelected(a,!a.node.selected)},treeClear:function(a){var b=a.tree;b.activeNode=null,b.focusNode=null,b.$div.find(">ul.fancytree-container").empty(),b.rootNode.children=null},treeCreate:function(){},treeDestroy:function(){},treeInit:function(a){this.treeLoad(a)},treeLoad:function(b,c){var d,f,g,h=b.tree,i=b.widget.element,j=a.extend({},b,{node:this.rootNode});if(h.rootNode.children&&this.treeClear(b),c=c||this.options.source)"string"==typeof c&&e();else switch(d=i.data("type")||"html"){case"html":f=i.find(">ul:first"),f.addClass("ui-fancytree-source 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g=this.nodeLoadChildren(j,c).done(function(){h.render(),3===b.options.selectMode&&h.rootNode.fixSelection3FromEndNodes(),h._triggerTreeEvent("init",!0)}).fail(function(){h.render(),h._triggerTreeEvent("init",!1)})},treeRegisterNode:function(){},treeSetFocus:function(a,b){b=b!==!1,b!==this.hasFocus()&&(this._hasFocus=b,this.$container.toggleClass("fancytree-treefocus",b),this._triggerTreeEvent(b?"focusTree":"blurTree"))}}),a.widget("ui.fancytree",{options:{activeVisible:!0,ajax:{type:"GET",cache:!1,dataType:"json"},aria:!1,autoActivate:!0,autoCollapse:!1,autoScroll:!1,checkbox:!1,clickFolderMode:4,debugLevel:null,disabled:!1,enableAspx:!0,extensions:[],fx:{height:"toggle",duration:200},generateIds:!1,icons:!0,id:null,idPrefix:"ft_",keyboard:!0,keyPathSeparator:"/",minExpandLevel:1,scrollOfs:{top:0,bottom:0},scrollParent:null,selectMode:2,strings:{loading:"Loading&#8230;",loadError:"Load error!"},tabbable:!0,titlesTabbable:!1,_classNames:{node:"fancytree-node",folder:"fancytree-folder",combinedExpanderPrefix:"fancytree-exp-",combinedIconPrefix:"fancytree-ico-",hasChildren:"fancytree-has-children",active:"fancytree-active",selected:"fancytree-selected",expanded:"fancytree-expanded",lazy:"fancytree-lazy",focused:"fancytree-focused",partsel:"fancytree-partsel",lastsib:"fancytree-lastsib",loading:"fancytree-loading",error:"fancytree-error"},lazyLoad:null,postProcess:null},_create:function(){this.tree=new r(this),this.$source=this.source||"json"===this.element.data("type")?this.element:this.element.find(">ul:first");var b,c,e,g=this.options.extensions,h=this.tree;for(e=0;e<g.length;e++)c=g[e],b=a.ui.fancytree._extensions[c],b||a.error("Could not apply extension '"+c+"' (it is not registered, did you forget to include it?)"),this.tree.options[c]=a.extend(!0,{},b.options,this.tree.options[c]),f(this.tree.ext[c]===d,"Extension name must not exist as Fancytree.ext attribute: '"+c+"'"),this.tree.ext[c]={},k(this.tree,h,b,c),h=b;this.tree._callHook("treeCreate",this.tree)},_init:function(){this.tree._callHook("treeInit",this.tree),this._bind()},_setOption:function(b,c){var d=!0,e=!1;switch(b){case"aria":case"checkbox":case"icons":case"minExpandLevel":case"tabbable":this.tree._callHook("treeCreate",this.tree),e=!0;break;case"source":d=!1,this.tree._callHook("treeLoad",this.tree,c)}this.tree.debug("set option "+b+"="+c+" <"+typeof c+">"),d&&a.Widget.prototype._setOption.apply(this,arguments),e&&this.tree.render(!0,!1)},destroy:function(){this._unbind(),this.tree._callHook("treeDestroy",this.tree),this.tree.$div.find(">ul.fancytree-container").remove(),this.$source&&this.$source.removeClass("ui-helper-hidden"),a.Widget.prototype.destroy.call(this)},_unbind:function(){var b=this.tree._ns;this.element.unbind(b),this.tree.$container.unbind(b),a(c).unbind(b)},_bind:function(){var a=this,b=this.options,c=this.tree,d=c._ns;this._unbind(),c.$container.on("focusin"+d+" focusout"+d,function(a){var b=t.getNode(a),d="focusin"===a.type;b?c._callHook("nodeSetFocus",b,d):c._callHook("treeSetFocus",c,d)}).on("selectstart"+d,"span.fancytree-title",function(a){a.preventDefault()}).on("keydown"+d,function(a){if(b.disabled||b.keyboard===!1)return!0;var d,e=c.focusNode,f=c._makeHookContext(e||c,a),g=c.phase;try{return c.phase="userEvent",d=e?c._triggerNodeEvent("keydown",e,a):c._triggerTreeEvent("keydown",a),"preventNav"===d?d=!0:d!==!1&&(d=c._callHook("nodeKeydown",f)),d}finally{c.phase=g}}).on("click"+d+" dblclick"+d,function(c){if(b.disabled)return!0;var d,e=t.getEventTarget(c),f=e.node,g=a.tree,h=g.phase;if(!f)return!0;d=g._makeHookContext(f,c);try{switch(g.phase="userEvent",c.type){case"click":return d.targetType=e.type,g._triggerNodeEvent("click",d,c)===!1?!1:g._callHook("nodeClick",d);case"dblclick":return d.targetType=e.type,g._triggerNodeEvent("dblclick",d,c)===!1?!1:g._callHook("nodeDblclick",d)}}finally{g.phase=h}})},getActiveNode:function(){return this.tree.activeNode},getNodeByKey:function(a){return this.tree.getNodeByKey(""+a)},getRootNode:function(){return this.tree.rootNode},getTree:function(){return this.tree}}),t=a.ui.fancytree,a.extend(a.ui.fancytree,{version:"2.4.1",buildType: "production",debugLevel: 1,_nextId:1,_nextNodeKey:1,_extensions:{},_FancytreeClass:r,_FancytreeNodeClass:q,jquerySupports:{positionMyOfs:i(a.ui.version,1,9)},assert:function(a,b){return f(a,b)},debounce:function(a,b,c,d){var e;return 3===arguments.length&&"boolean"!=typeof c&&(d=c,c=!1),function(){var f=arguments;d=d||this,c&&!e&&b.apply(d,f),clearTimeout(e),e=setTimeout(function(){c||b.apply(d,f),e=null},a)}},debug:function(){a.ui.fancytree.debugLevel>=2&&g("log",arguments)},error:function(){g("error",arguments)},escapeHtml:function(a){return(""+a).replace(/[&<>"'\/]/g,function(a){return u[a]})},unescapeHtml:function(a){var b=c.createElement("div");return b.innerHTML=a,0===b.childNodes.length?"":b.childNodes[0].nodeValue},getEventTargetType:function(a){return this.getEventTarget(a).type},getEventTarget:function(b){var c=b&&b.target?b.target.className:"",e={node:this.getNode(b.target),type:d};return/\bfancytree-title\b/.test(c)?e.type="title":/\bfancytree-expander\b/.test(c)?e.type=e.node.hasChildren()===!1?"prefix":"expander":/\bfancytree-checkbox\b/.test(c)||/\bfancytree-radio\b/.test(c)?e.type="checkbox":/\bfancytree-icon\b/.test(c)?e.type="icon":/\bfancytree-node\b/.test(c)?e.type="title":b&&b.target&&a(b.target).closest(".fancytree-title").length&&(e.type="title"),e},getNode:function(a){if(a instanceof q)return a;for(a.selector!==d?a=a[0]:a.originalEvent!==d&&(a=a.target);a;){if(a.ftnode)return a.ftnode;a=a.parentNode}return null},info:function(){a.ui.fancytree.debugLevel>=1&&g("info",arguments)},parseHtml:function(b){var c,e,f,g,h,i,j,k,l=b.find(">li"),m=[];return l.each(function(){var l,n=a(this),p=n.find(">span:first",this),q=p.length?null:n.find(">a:first"),r={tooltip:null,data:{}};for(p.length?r.title=p.html():q&&q.length?(r.title=q.html(),r.data.href=q.attr("href"),r.data.target=q.attr("target"),r.tooltip=q.attr("title")):(r.title=n.html(),g=r.title.search(/<ul/i),g>=0&&(r.title=r.title.substring(0,g))),r.title=a.trim(r.title),e=0,f=v.length;f>e;e++)r[v[e]]=d;for(j=this.className.split(" "),c=[],e=0,f=j.length;f>e;e++)k=j[e],w[k]?r[k]=!0:c.push(k);if(r.extraClasses=c.join(" "),h=n.attr("title"),h&&(r.tooltip=h),h=n.attr("id"),h&&(r.key=h),l=o(n),l&&!a.isEmptyObject(l)){for(e=0,f=x.length;f>e;e++)h=x[e],i=l[h],null!=i&&(delete l[h],r[h]=i);a.extend(r.data,l)}b=n.find(">ul:first"),r.children=b.length?a.ui.fancytree.parseHtml(b):r.lazy?d:null,m.push(r)}),m},registerExtension:function(b){f(null!=b.name,"extensions must have a `name` property."),f(null!=b.version,"extensions must have a `version` property."),a.ui.fancytree._extensions[b.name]=b},warn:function(){g("warn",arguments)}})}(jQuery,window,document);
 
 /*! Extension 'jquery.fancytree.childcounter.min.js' */
 !function(a){"use strict";a.ui.fancytree._FancytreeClass.prototype.countSelected=function(a){{var b=this;b.options}return b.getSelectedNodes(a).length},a.ui.fancytree._FancytreeNodeClass.prototype.toUpper=function(){var a=this;return a.setTitle(a.title.toUpperCase())},a.ui.fancytree.prototype.widgetMethod1=function(a){this.tree;return a},a.ui.fancytree.registerExtension({name:"childcounter",version:"1.0.0",options:{deep:!0,hideZeros:!0,hideExpanded:!1},foo:42,_appendCounter:function(){},treeInit:function(a){a.options,a.options.childcounter;this._super(a),this.$container.addClass("fancytree-ext-childcounter")},treeDestroy:function(a){this._super(a)},nodeRenderTitle:function(b,c){var d=b.node,e=b.options.childcounter,f=null==d.data.childCounter?d.countChildren(e.deep):+d.data.childCounter;this._super(b,c),!f&&e.hideZeros||d.isExpanded()&&e.hideExpanded||a("span.fancytree-icon",d.span).append(a("<span class='fancytree-childcounter'/>").text(f))},nodeSetExpanded:function(a,b,c){{var d=a.tree;a.node}return this._super(a,b,c).always(function(){d.nodeRenderTitle(a)})}})}(jQuery);
diff --git a/dist/jquery.fancytree.js b/dist/jquery.fancytree.js
index 1ce3dcb1..65573b36 100644
--- a/dist/jquery.fancytree.js
+++ b/dist/jquery.fancytree.js
@@ -7,8 +7,8 @@
  * Released under the MIT license
  * https://github.com/mar10/fancytree/wiki/LicenseInfo
  *
- * @version 2.4.0
- * @date 2014-09-21T13:14
+ * @version 2.4.1
+ * @date 2014-09-23T19:33
  */
 
 /** Core Fancytree module.
@@ -844,7 +844,7 @@ FancytreeNode.prototype = /** @lends FancytreeNode# */{
 			}
 			return true;
 		}
-		return ( this.children && this.children.length );
+		return !!( this.children && this.children.length );
 	},
 	/** Return true if node has keyboard focus.
 	 * @returns {boolean}
@@ -3905,7 +3905,7 @@ $.extend($.ui.fancytree,
 	/** @lends Fancytree_Static# */
 	{
 	/** @type {string} */
-	version: "2.4.0",      // Set to semver by 'grunt release'
+	version: "2.4.1",      // Set to semver by 'grunt release'
 	/** @type {string} */
 	buildType: "production", // Set to 'production' by 'grunt build'
 	/** @type {int} */
diff --git a/dist/jquery.fancytree.min.js b/dist/jquery.fancytree.min.js
index ec1e0ef8..cc23020b 100644
--- a/dist/jquery.fancytree.min.js
+++ b/dist/jquery.fancytree.min.js
@@ -7,8 +7,8 @@
  * Released under the MIT license
  * https://github.com/mar10/fancytree/wiki/LicenseInfo
  *
- * @version 2.4.0
- * @date 2014-09-21T13:14
+ * @version 2.4.1
+ * @date 2014-09-23T19:33
  */
-!function(a,b,c,d){"use strict";function e(b){b=b||"",a.error("Not implemented: "+b)}function f(b,c){b||(c=c?": "+c:"",a.error("Fancytree assertion failed"+c))}function g(a,c){var d,e,f=b.console?b.console[a]:null;if(f)if(f.apply)f.apply(b.console,c);else{for(e="",d=0;d<c.length;d++)e+=c[d];f(e)}}function h(a){return!(!a.tree||a.statusNodeType===d)}function i(b){var c,d,e,f=a.map(a.trim(b).split("."),function(a){return parseInt(a,10)}),g=a.map(Array.prototype.slice.call(arguments,1),function(a){return parseInt(a,10)});for(c=0;c<g.length;c++)if(d=f[c]||0,e=g[c]||0,d!==e)return d>e;return!0}function j(a,b,c,d,e){var f=function(){var c=b[a],f=d[a],g=b.ext[e],h=function(){return c.apply(b,arguments)};return function(){var a=b._local,c=b._super;try{return b._local=g,b._super=h,f.apply(b,arguments)}finally{b._local=a,b._super=c}}}();return f}function k(b,c,d,e){for(var f in d)"function"==typeof d[f]?"function"==typeof b[f]?b[f]=j(f,b,c,d,e):"_"===f.charAt(0)?b.ext[e][f]=j(f,b,c,d,e):a.error("Could not override tree."+f+". Use prefix '_' to create tree."+e+"._"+f):"options"!==f&&(b.ext[e][f]=d[f])}function l(b,c){return b===d?a.Deferred(function(){this.resolve()}).promise():a.Deferred(function(){this.resolveWith(b,c)}).promise()}function m(b,c){return b===d?a.Deferred(function(){this.reject()}).promise():a.Deferred(function(){this.rejectWith(b,c)}).promise()}function n(a,b){return function(){a.resolveWith(b)}}function o(b){var c=a.extend({},b.data()),d=c.json;return delete c.fancytree,d&&(delete c.json,c=a.extend(c,d)),c}function p(a){return a=a.toLowerCase(),function(b){return b.title.toLowerCase().indexOf(a)>=0}}function q(b,c){var d,e,g,h;for(this.parent=b,this.tree=b.tree,this.ul=null,this.li=null,this.statusNodeType=null,this._isLoading=!1,this._error=null,this.data={},d=0,e=x.length;e>d;d++)g=x[d],this[g]=c[g];c.data&&a.extend(this.data,c.data);for(g in c)y[g]||a.isFunction(c[g])||z[g]||(this.data[g]=c[g]);null==this.key?this.tree.options.defaultKey?(this.key=this.tree.options.defaultKey(this),f(this.key,"defaultKey() must return a unique key")):this.key="_"+t._nextNodeKey++:this.key=""+this.key,c.active&&(f(null===this.tree.activeNode,"only one active node allowed"),this.tree.activeNode=this),c.selected&&(this.tree.lastSelectedNode=this),this.children=null,h=c.children,h&&h.length&&this._setChildren(h),this.tree._callHook("treeRegisterNode",this.tree,!0,this)}function r(b){this.widget=b,this.$div=b.element,this.options=b.options,this.options&&a.isFunction(this.options.lazyload)&&(a.isFunction(this.options.lazyLoad)||(this.options.lazyLoad=function(){t.warn("The 'lazyload' event is deprecated since 2014-02-25. Use 'lazyLoad' (with uppercase L) instead."),b.options.lazyload.apply(this,arguments)})),this.options&&a.isFunction(this.options.loaderror)&&a.error("The 'loaderror' event was renamed since 2014-07-03. Use 'loadError' (with uppercase E) instead."),this.ext={},this.data=o(this.$div),this._id=null==this.options.id?a.ui.fancytree._nextId++:this.options.id,this._ns=".fancytree-"+this._id,this.activeNode=null,this.focusNode=null,this._hasFocus=null,this.lastSelectedNode=null,this.systemFocusElement=null,this.statusClassPropName="span",this.ariaPropName="li",this.nodeContainerAttrName="li",this.$div.find(">ul.fancytree-container").remove();var c,d={tree:this};this.rootNode=new q(d,{title:"root",key:"root_"+this._id,children:null,expanded:!0}),this.rootNode.parent=null,c=a("<ul>",{"class":"ui-fancytree fancytree-container"}).appendTo(this.$div),this.$container=c,this.rootNode.ul=c[0],null==this.options.debugLevel&&(this.options.debugLevel=t.debugLevel),this.$container.attr("tabindex",this.options.tabbable?"0":"-1"),this.options.aria&&this.$container.attr("role","tree").attr("aria-multiselectable",!0)}if(a.ui.fancytree&&a.ui.fancytree.version)return void a.ui.fancytree.warn("Fancytree: ignored duplicate include");var s,t=null,u={"&":"&amp;","<":"&lt;",">":"&gt;",'"':"&quot;","'":"&#39;","/":"&#x2F;"},v="active expanded focus folder hideCheckbox lazy selected unselectable".split(" "),w={},x="expanded extraClasses folder hideCheckbox key lazy refKey selected title tooltip unselectable".split(" "),y={},z={active:!0,children:!0,data:!0,focus:!0};for(s=0;s<v.length;s++)w[v[s]]=!0;for(s=0;s<x.length;s++)y[x[s]]=!0;q.prototype={_findDirectChild:function(a){var b,c,d=this.children;if(d)if("string"==typeof a){for(b=0,c=d.length;c>b;b++)if(d[b].key===a)return d[b]}else{if("number"==typeof a)return this.children[a];if(a.parent===this)return a}return null},_setChildren:function(a){f(a&&(!this.children||0===this.children.length),"only init supported"),this.children=[];for(var b=0,c=a.length;c>b;b++)this.children.push(new q(this,a[b]))},addChildren:function(b,c){var d,e,g,h=null,i=[];for(a.isPlainObject(b)&&(b=[b]),this.children||(this.children=[]),d=0,e=b.length;e>d;d++)i.push(new q(this,b[d]));return h=i[0],null==c?this.children=this.children.concat(i):(c=this._findDirectChild(c),g=a.inArray(c,this.children),f(g>=0,"insertBefore must be an existing child"),this.children.splice.apply(this.children,[g,0].concat(i))),(!this.parent||this.parent.ul||this.tr)&&this.render(),3===this.tree.options.selectMode&&this.fixSelection3FromEndNodes(),h},addNode:function(a,b){switch((b===d||"over"===b)&&(b="child"),b){case"after":return this.getParent().addChildren(a,this.getNextSibling());case"before":return this.getParent().addChildren(a,this);case"child":case"over":return this.addChildren(a)}f(!1,"Invalid mode: "+b)},appendSibling:function(a){return this.addNode(a,"after")},applyPatch:function(b){if(null===b)return this.remove(),l(this);var c,d,e,f={children:!0,expanded:!0,parent:!0};for(c in b)e=b[c],f[c]||a.isFunction(e)||(y[c]?this[c]=e:this.data[c]=e);return b.hasOwnProperty("children")&&(this.removeChildren(),b.children&&this._setChildren(b.children)),this.isVisible()&&(this.renderTitle(),this.renderStatus()),d=b.hasOwnProperty("expanded")?this.setExpanded(b.expanded):l(this)},collapseSiblings:function(){return this.tree._callHook("nodeCollapseSiblings",this)},copyTo:function(a,b,c){return a.addNode(this.toDict(!0,c),b)},countChildren:function(a){var b,c,d,e=this.children;if(!e)return 0;if(d=e.length,a!==!1)for(b=0,c=d;c>b;b++)d+=e[b].countChildren();return d},debug:function(){this.tree.options.debugLevel>=2&&(Array.prototype.unshift.call(arguments,this.toString()),g("debug",arguments))},discard:function(){return this.warn("FancytreeNode.discard() is deprecated since 2014-02-16. Use .resetLazy() instead."),this.resetLazy()},findAll:function(b){b=a.isFunction(b)?b:p(b);var c=[];return this.visit(function(a){b(a)&&c.push(a)}),c},findFirst:function(b){b=a.isFunction(b)?b:p(b);var c=null;return this.visit(function(a){return b(a)?(c=a,!1):void 0}),c},_changeSelectStatusAttrs:function(a){var b=!1;switch(a){case!1:b=this.selected||this.partsel,this.selected=!1,this.partsel=!1;break;case!0:b=!this.selected||!this.partsel,this.selected=!0,this.partsel=!0;break;case d:b=this.selected||!this.partsel,this.selected=!1,this.partsel=!0;break;default:f(!1,"invalid state: "+a)}return b&&this.renderStatus(),b},fixSelection3AfterClick:function(){var a=this.isSelected();this.visit(function(b){b._changeSelectStatusAttrs(a)}),this.fixSelection3FromEndNodes()},fixSelection3FromEndNodes:function(){function a(b){var c,e,f,g,h,i,j,k=b.children;if(k&&k.length){for(i=!0,j=!1,c=0,e=k.length;e>c;c++)f=k[c],g=a(f),g!==!1&&(j=!0),g!==!0&&(i=!1);h=i?!0:j?d:!1}else h=!!b.selected;return b._changeSelectStatusAttrs(h),h}f(3===this.tree.options.selectMode,"expected selectMode 3"),a(this),this.visitParents(function(a){var b,c,e,f,g=a.children,h=!0,i=!1;for(b=0,c=g.length;c>b;b++)e=g[b],(e.selected||e.partsel)&&(i=!0),e.unselectable||e.selected||(h=!1);f=h?!0:i?d:!1,a._changeSelectStatusAttrs(f)})},fromDict:function(b){for(var c in b)y[c]?this[c]=b[c]:"data"===c?a.extend(this.data,b.data):a.isFunction(b[c])||z[c]||(this.data[c]=b[c]);b.children&&(this.removeChildren(),this.addChildren(b.children)),this.renderTitle()},getChildren:function(){return this.hasChildren()===d?d:this.children},getFirstChild:function(){return this.children?this.children[0]:null},getIndex:function(){return a.inArray(this,this.parent.children)},getIndexHier:function(b){b=b||".";var c=[];return a.each(this.getParentList(!1,!0),function(a,b){c.push(b.getIndex()+1)}),c.join(b)},getKeyPath:function(a){var b=[],c=this.tree.options.keyPathSeparator;return this.visitParents(function(a){a.parent&&b.unshift(a.key)},!a),c+b.join(c)},getLastChild:function(){return this.children?this.children[this.children.length-1]:null},getLevel:function(){for(var a=0,b=this.parent;b;)a++,b=b.parent;return a},getNextSibling:function(){if(this.parent){var a,b,c=this.parent.children;for(a=0,b=c.length-1;b>a;a++)if(c[a]===this)return c[a+1]}return null},getParent:function(){return this.parent},getParentList:function(a,b){for(var c=[],d=b?this:this.parent;d;)(a||d.parent)&&c.unshift(d),d=d.parent;return c},getPrevSibling:function(){if(this.parent){var a,b,c=this.parent.children;for(a=1,b=c.length;b>a;a++)if(c[a]===this)return c[a-1]}return null},hasChildren:function(){return this.lazy?null==this.children?d:0===this.children.length?!1:1===this.children.length&&this.children[0].isStatusNode()?d:!0:this.children&&this.children.length},hasFocus:function(){return this.tree.hasFocus()&&this.tree.focusNode===this},info:function(){this.tree.options.debugLevel>=1&&(Array.prototype.unshift.call(arguments,this.toString()),g("info",arguments))},isActive:function(){return this.tree.activeNode===this},isChildOf:function(a){return this.parent&&this.parent===a},isDescendantOf:function(a){if(!a||a.tree!==this.tree)return!1;for(var b=this.parent;b;){if(b===a)return!0;b=b.parent}return!1},isExpanded:function(){return!!this.expanded},isFirstSibling:function(){var a=this.parent;return!a||a.children[0]===this},isFolder:function(){return!!this.folder},isLastSibling:function(){var a=this.parent;return!a||a.children[a.children.length-1]===this},isLazy:function(){return!!this.lazy},isLoaded:function(){return!this.lazy||this.hasChildren()!==d},isLoading:function(){return!!this._isLoading},isRoot:function(){return this.isRootNode()},isRootNode:function(){return this.tree.rootNode===this},isSelected:function(){return!!this.selected},isStatusNode:function(){return!!this.statusNodeType},isTopLevel:function(){return this.tree.rootNode===this.parent},isUndefined:function(){return this.hasChildren()===d},isVisible:function(){var a,b,c=this.getParentList(!1,!1);for(a=0,b=c.length;b>a;a++)if(!c[a].expanded)return!1;return!0},lazyLoad:function(a){return this.warn("FancytreeNode.lazyLoad() is deprecated since 2014-02-16. 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c=this._makeHookContext(this,b),e=this.widget._trigger(a,b,c);return e!==!1&&c.result!==d?c.result:e},visit:function(a){return this.rootNode.visit(a,!1)},warn:function(){Array.prototype.unshift.call(arguments,this.toString()),g("warn",arguments)}},a.extend(r.prototype,{nodeClick:function(a){var b,c,d=a.originalEvent,e=a.targetType,f=a.node;if("expander"===e)this._callHook("nodeToggleExpanded",a);else if("checkbox"===e)this._callHook("nodeToggleSelected",a),this._callHook("nodeSetFocus",a,!0);else{if(c=!1,b=!0,f.folder)switch(a.options.clickFolderMode){case 2:c=!0,b=!1;break;case 3:b=!0,c=!0}b&&(this.nodeSetFocus(a),this._callHook("nodeSetActive",a,!0)),c&&this._callHook("nodeToggleExpanded",a)}"a"===d.target.localName&&"fancytree-title"===d.target.className&&d.preventDefault()},nodeCollapseSiblings:function(a,b){var c,d,e,f=a.node;if(f.parent)for(c=f.parent.children,d=0,e=c.length;e>d;d++)c[d]!==f&&c[d].expanded&&this._callHook("nodeSetExpanded",c[d],!1,b)},nodeDblclick:function(a){"title"===a.targetType&&4===a.options.clickFolderMode&&this._callHook("nodeToggleExpanded",a),"title"===a.targetType&&a.originalEvent.preventDefault()},nodeKeydown:function(b){var c,d=b.originalEvent,e=b.node,f=b.tree,g=b.options,h=!0,i=!(d.ctrlKey||!g.autoActivate),j=a.ui.keyCode;switch(e||(this.rootNode.getFirstChild().setFocus(),e=b.node=this.focusNode,e.debug("Keydown force focus on first node")),d.which){case j.NUMPAD_ADD:case 187:f.nodeSetExpanded(b,!0);break;case j.NUMPAD_SUBTRACT:case 189:f.nodeSetExpanded(b,!1);break;case j.SPACE:g.checkbox?f.nodeToggleSelected(b):f.nodeSetActive(b,!0);break;case j.ENTER:f.nodeSetActive(b,!0);break;case j.BACKSPACE:case j.LEFT:case j.RIGHT:case j.UP:case j.DOWN:c=e.navigate(d.which,i);break;default:h=!1}h&&d.preventDefault()},nodeLoadChildren:function(b,c){var d,e,g,h=b.tree,i=b.node;return a.isFunction(c)&&(c=c()),c.url&&(d=a.extend({},b.options.ajax,c),d.debugDelay?(e=d.debugDelay,a.isArray(e)&&(e=e[0]+Math.random()*(e[1]-e[0])),i.debug("nodeLoadChildren waiting debug delay "+Math.round(e)+"ms"),d.debugDelay=!1,g=a.Deferred(function(b){setTimeout(function(){a.ajax(d).done(function(){b.resolveWith(this,arguments)}).fail(function(){b.rejectWith(this,arguments)})},e)})):g=a.ajax(d),c=new a.Deferred,g.done(function(d){var e,f;if("string"==typeof d&&a.error("Ajax request returned a string (did you get the JSON dataType wrong?)."),b.options.postProcess){if(f=h._triggerNodeEvent("postProcess",b,b.originalEvent,{response:d,error:null,dataType:this.dataType}),f.error)return e=a.isPlainObject(f.error)?f.error:{message:f.error},e=h._makeHookContext(i,null,e),void c.rejectWith(this,[e]);d=a.isArray(f)?f:d}else d&&d.hasOwnProperty("d")&&b.options.enableAspx&&(d="string"==typeof d.d?a.parseJSON(d.d):d.d);c.resolveWith(this,[d])}).fail(function(a,b,d){var e=h._makeHookContext(i,null,{error:a,args:Array.prototype.slice.call(arguments),message:d,details:a.status+": "+d});c.rejectWith(this,[e])})),a.isFunction(c.promise)&&(f(!i.isLoading()),h.nodeSetStatus(b,"loading"),c.done(function(){h.nodeSetStatus(b,"ok")}).fail(function(a){var c;c=a.node&&a.error&&a.message?a:h._makeHookContext(i,null,{error:a,args:Array.prototype.slice.call(arguments),message:a?a.message||a.toString():""}),h._triggerNodeEvent("loadError",c,null)!==!1&&h.nodeSetStatus(b,"error",c.message,c.details)})),a.when(c).done(function(b){var c;a.isPlainObject(b)&&(f(a.isArray(b.children),"source must contain (or be) an array of children"),f(i.isRoot(),"source may only be an object for root nodes"),c=b,b=b.children,delete c.children,a.extend(h.data,c)),f(a.isArray(b),"expected array of children"),i._setChildren(b),h._triggerNodeEvent("loadChildren",i)})},nodeLoadKeyPath:function(){},nodeRemoveChild:function(b,c){var d,e=b.node,g=b.options,h=a.extend({},b,{node:c}),i=e.children;return 1===i.length?(f(c===i[0]),this.nodeRemoveChildren(b)):(this.activeNode&&(c===this.activeNode||this.activeNode.isDescendantOf(c))&&this.activeNode.setActive(!1),this.focusNode&&(c===this.focusNode||this.focusNode.isDescendantOf(c))&&(this.focusNode=null),this.nodeRemoveMarkup(h),this.nodeRemoveChildren(h),d=a.inArray(c,i),f(d>=0),c.visit(function(a){a.parent=null},!0),this._callHook("treeRegisterNode",this,!1,c),g.removeNode&&g.removeNode.call(b.tree,{type:"removeNode"},h),void i.splice(d,1))},nodeRemoveChildMarkup:function(b){var c=b.node;c.ul&&(c.isRoot()?a(c.ul).empty():(a(c.ul).remove(),c.ul=null),c.visit(function(a){a.li=a.ul=null}))},nodeRemoveChildren:function(b){var c,d=b.tree,e=b.node,f=e.children,g=b.options;f&&(this.activeNode&&this.activeNode.isDescendantOf(e)&&this.activeNode.setActive(!1),this.focusNode&&this.focusNode.isDescendantOf(e)&&(this.focusNode=null),this.nodeRemoveChildMarkup(b),c=a.extend({},b),e.visit(function(a){a.parent=null,d._callHook("treeRegisterNode",d,!1,a),g.removeNode&&(c.node=a,g.removeNode.call(b.tree,{type:"removeNode"},c))}),e.children=e.lazy?[]:null,this.nodeRenderStatus(b))},nodeRemoveMarkup:function(b){var c=b.node;c.li&&(a(c.li).remove(),c.li=null),this.nodeRemoveChildMarkup(b)},nodeRender:function(b,d,e,g,h){var i,j,k,l,m,n,o,p=b.node,q=b.tree,r=b.options,s=r.aria,t=!1,u=p.parent,v=!u,w=p.children;if(v||u.ul){if(f(v||u.ul,"parent UL must exist"),v||(p.li&&(d||p.li.parentNode!==p.parent.ul)&&(p.li.parentNode!==p.parent.ul&&this.warn("unlink "+p+" (must be child of 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role='img'":"",(p===!0||p!==!1&&l.icons!==!1)&&(p&&"string"==typeof p?(p="/"===p.charAt(0)?p:(l.imagePath||"")+p,o.push("<img src='"+p+"' class='fancytree-icon' alt='' />")):(e=l.iconClass&&l.iconClass.call(k,j,a)||j.data.iconclass||null,o.push(e?"<span "+g+" class='fancytree-custom-icon "+e+"'></span>":"<span "+g+" class='fancytree-icon'></span>"))),f="",l.renderTitle&&(f=l.renderTitle.call(k,{type:"renderTitle"},a)||""),f||(i=j.tooltip?" title='"+j.tooltip.replace("'","&apos;")+"'":"",c=m?" id='ftal_"+j.key+"'":"",g=m?" role='treeitem'":"",h=l.titlesTabbable?" tabindex='0'":"",f="<span "+g+" class='fancytree-title'"+c+i+h+">"+j.title+"</span>"),o.push(f),j.span.innerHTML=o.join(""),this.nodeRenderStatus(a))},nodeRenderStatus:function(b){var c=b.node,d=b.tree,e=b.options,f=c.hasChildren(),g=c.isLastSibling(),h=e.aria,i=a(c.span).find(".fancytree-title"),j=e._classNames,k=[],l=c[d.statusClassPropName];l&&(k.push(j.node),d.activeNode===c&&k.push(j.active),d.focusNode===c?(k.push(j.focused),h&&i.attr("aria-activedescendant",!0)):h&&i.removeAttr("aria-activedescendant"),c.expanded?(k.push(j.expanded),h&&i.attr("aria-expanded",!0)):h&&i.removeAttr("aria-expanded"),c.folder&&k.push(j.folder),f!==!1&&k.push(j.hasChildren),g&&k.push(j.lastsib),c.lazy&&null==c.children&&k.push(j.lazy),c.partsel&&k.push(j.partsel),c._isLoading&&k.push(j.loading),c._error&&k.push(j.error),c.selected?(k.push(j.selected),h&&i.attr("aria-selected",!0)):h&&i.attr("aria-selected",!1),c.extraClasses&&k.push(c.extraClasses),k.push(f===!1?j.combinedExpanderPrefix+"n"+(g?"l":""):j.combinedExpanderPrefix+(c.expanded?"e":"c")+(c.lazy&&null==c.children?"d":"")+(g?"l":"")),k.push(j.combinedIconPrefix+(c.expanded?"e":"c")+(c.folder?"f":"")),l.className=k.join(" "),c.li&&(c.li.className=g?j.lastsib:""))},nodeSetActive:function(b,c,d){d=d||{};var e,g=b.node,h=b.tree,i=b.options,j=d.noEvents===!0,k=g===h.activeNode;return c=c!==!1,k===c?l(g):c&&!j&&this._triggerNodeEvent("beforeActivate",g,b.originalEvent)===!1?m(g,["rejected"]):void(c?(h.activeNode&&(f(h.activeNode!==g,"node was active (inconsistency)"),e=a.extend({},b,{node:h.activeNode}),h.nodeSetActive(e,!1),f(null===h.activeNode,"deactivate was out of sync?")),i.activeVisible&&g.makeVisible({scrollIntoView:!1}),h.activeNode=g,h.nodeRenderStatus(b),h.nodeSetFocus(b),j||h._triggerNodeEvent("activate",g,b.originalEvent)):(f(h.activeNode===g,"node was not active (inconsistency)"),h.activeNode=null,this.nodeRenderStatus(b),j||b.tree._triggerNodeEvent("deactivate",g,b.originalEvent)))},nodeSetExpanded:function(b,c,e){e=e||{};var f,g,h,i,j,k,n=b.node,o=b.tree,p=b.options,q=e.noAnimation===!0,r=e.noEvents===!0;if(c=c!==!1,n.expanded&&c||!n.expanded&&!c)return l(n);if(c&&!n.lazy&&!n.hasChildren())return l(n);if(!c&&n.getLevel()<p.minExpandLevel)return m(n,["locked"]);if(!r&&this._triggerNodeEvent("beforeExpand",n,b.originalEvent)===!1)return m(n,["rejected"]);if(q||n.isVisible()||(q=e.noAnimation=!0),g=new a.Deferred,c&&!n.expanded&&p.autoCollapse){j=n.getParentList(!1,!0),k=p.autoCollapse;
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("+d+") ":""),tooltip:e,extraClasses:"fancytree-statusnode-wait"},c),h._isLoading=!0,h._error=null,h.renderStatus();break;case"error":g({title:i.options.strings.loadError+(d?" ("+d+") ":""),tooltip:e,extraClasses:"fancytree-statusnode-error"},c),h._isLoading=!1,h._error={message:d,details:e},h.renderStatus();break;default:a.error("invalid node status "+c)}},nodeToggleExpanded:function(a){return this.nodeSetExpanded(a,!a.node.expanded)},nodeToggleSelected:function(a){return this.nodeSetSelected(a,!a.node.selected)},treeClear:function(a){var b=a.tree;b.activeNode=null,b.focusNode=null,b.$div.find(">ul.fancytree-container").empty(),b.rootNode.children=null},treeCreate:function(){},treeDestroy:function(){},treeInit:function(a){this.treeLoad(a)},treeLoad:function(b,c){var d,f,g,h=b.tree,i=b.widget.element,j=a.extend({},b,{node:this.rootNode});if(h.rootNode.children&&this.treeClear(b),c=c||this.options.source)"string"==typeof c&&e();else switch(d=i.data("type")||"html"){case"html":f=i.find(">ul:first"),f.addClass("ui-fancytree-source 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g=this.nodeLoadChildren(j,c).done(function(){h.render(),3===b.options.selectMode&&h.rootNode.fixSelection3FromEndNodes(),h._triggerTreeEvent("init",!0)}).fail(function(){h.render(),h._triggerTreeEvent("init",!1)})},treeRegisterNode:function(){},treeSetFocus:function(a,b){b=b!==!1,b!==this.hasFocus()&&(this._hasFocus=b,this.$container.toggleClass("fancytree-treefocus",b),this._triggerTreeEvent(b?"focusTree":"blurTree"))}}),a.widget("ui.fancytree",{options:{activeVisible:!0,ajax:{type:"GET",cache:!1,dataType:"json"},aria:!1,autoActivate:!0,autoCollapse:!1,autoScroll:!1,checkbox:!1,clickFolderMode:4,debugLevel:null,disabled:!1,enableAspx:!0,extensions:[],fx:{height:"toggle",duration:200},generateIds:!1,icons:!0,id:null,idPrefix:"ft_",keyboard:!0,keyPathSeparator:"/",minExpandLevel:1,scrollOfs:{top:0,bottom:0},scrollParent:null,selectMode:2,strings:{loading:"Loading&#8230;",loadError:"Load error!"},tabbable:!0,titlesTabbable:!1,_classNames:{node:"fancytree-node",folder:"fancytree-folder",combinedExpanderPrefix:"fancytree-exp-",combinedIconPrefix:"fancytree-ico-",hasChildren:"fancytree-has-children",active:"fancytree-active",selected:"fancytree-selected",expanded:"fancytree-expanded",lazy:"fancytree-lazy",focused:"fancytree-focused",partsel:"fancytree-partsel",lastsib:"fancytree-lastsib",loading:"fancytree-loading",error:"fancytree-error"},lazyLoad:null,postProcess:null},_create:function(){this.tree=new r(this),this.$source=this.source||"json"===this.element.data("type")?this.element:this.element.find(">ul:first");var b,c,e,g=this.options.extensions,h=this.tree;for(e=0;e<g.length;e++)c=g[e],b=a.ui.fancytree._extensions[c],b||a.error("Could not apply extension '"+c+"' (it is not registered, did you forget to include it?)"),this.tree.options[c]=a.extend(!0,{},b.options,this.tree.options[c]),f(this.tree.ext[c]===d,"Extension name must not exist as Fancytree.ext attribute: 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d,e,f,g={},h=this;if(a.each(x,function(a,b){(h[b]||h[b]===!1)&&(g[b]=h[b])}),a.isEmptyObject(this.data)||(g.data=a.extend({},this.data),a.isEmptyObject(g.data)&&delete g.data),c&&c(g),b&&this.hasChildren())for(g.children=[],d=0,e=this.children.length;e>d;d++)f=this.children[d],f.isStatusNode()||g.children.push(f.toDict(!0,c));return g},toggleExpanded:function(){return this.tree._callHook("nodeToggleExpanded",this)},toggleSelected:function(){return this.tree._callHook("nodeToggleSelected",this)},toString:function(){return"<FancytreeNode(#"+this.key+", '"+this.title+"')>"},visit:function(a,b){var c,d,e=!0,f=this.children;if(b===!0&&(e=a(this),e===!1||"skip"===e))return e;if(f)for(c=0,d=f.length;d>c&&(e=f[c].visit(a,!0),e!==!1);c++);return e},visitAndLoad:function(b,c,d){var e,f,g,h=this;return b&&c===!0&&(f=b(h),f===!1||"skip"===f)?d?f:l():h.children||h.lazy?(e=new a.Deferred,g=[],h.load().done(function(){for(var c=0,d=h.children.length;d>c;c++){if(f=h.children[c].visitAndLoad(b,!0,!0),f===!1){e.reject();break}"skip"!==f&&g.push(f)}a.when.apply(this,g).then(function(){e.resolve()})}),e.promise()):l()},visitParents:function(a,b){if(b&&a(this)===!1)return!1;for(var c=this.parent;c;){if(a(c)===!1)return!1;c=c.parent}return!0},warn:function(){Array.prototype.unshift.call(arguments,this.toString()),g("warn",arguments)}},r.prototype={_makeHookContext:function(b,c,e){var f,g;return b.node!==d?(c&&b.originalEvent!==c&&a.error("invalid args"),f=b):b.tree?(g=b.tree,f={node:b,tree:g,widget:g.widget,options:g.widget.options,originalEvent:c}):b.widget?f={node:null,tree:b,widget:b.widget,options:b.widget.options,originalEvent:c}:a.error("invalid args"),e&&a.extend(f,e),f},_callHook:function(b,c){var d=this._makeHookContext(c),e=this[b],f=Array.prototype.slice.call(arguments,2);return a.isFunction(e)||a.error("_callHook('"+b+"') is not a function"),f.unshift(d),e.apply(this,f)},_requireExtension:function(b,c,d,e){d=!!d;var g=this._local.name,h=this.options.extensions,i=a.inArray(b,h)<a.inArray(g,h),j=c&&null==this.ext[b],k=!j&&null!=d&&d!==i;return f(g&&g!==b),j||k?(e||(j||c?(e="'"+g+"' extension requires '"+b+"'",k&&(e+=" to be registered "+(d?"before":"after")+" itself")):e="If used together, `"+b+"` must be registered "+(d?"before":"after")+" `"+g+"`"),a.error(e),!1):!0},activateKey:function(a){var b=this.getNodeByKey(a);return b?b.setActive():this.activeNode&&this.activeNode.setActive(!1),b},applyPatch:function(b){var c,d,e,g,h,i,j=b.length,k=[];for(d=0;j>d;d++)e=b[d],f(2===e.length,"patchList must be an array of length-2-arrays"),g=e[0],h=e[1],i=null===g?this.rootNode:this.getNodeByKey(g),i?(c=new a.Deferred,k.push(c),i.applyPatch(h).always(n(c,i))):this.warn("could not find node with key '"+g+"'");return a.when.apply(a,k).promise()},count:function(){return this.rootNode.countChildren()},debug:function(){this.options.debugLevel>=2&&(Array.prototype.unshift.call(arguments,this.toString()),g("debug",arguments))},generateFormElements:function(b,c,d){var e,f=b!==!1?"ft_"+this._id+"[]":b,g=c!==!1?"ft_"+this._id+"_active":c,h="fancytree_result_"+this._id,i=a("#"+h);d="boolean"==typeof d?d:3===this.options.selectMode,i.length?i.empty():i=a("<div>",{id:h}).hide().insertAfter(this.$container),f&&(e=this.getSelectedNodes(d),a.each(e,function(b,c){i.append(a("<input>",{type:"checkbox",name:f,value:c.key,checked:!0}))})),g&&this.activeNode&&i.append(a("<input>",{type:"radio",name:g,value:this.activeNode.key,checked:!0}))},getActiveNode:function(){return this.activeNode},getFirstChild:function(){return this.rootNode.getFirstChild()},getFocusNode:function(){return this.focusNode},getNodeByKey:function(a,b){var d,e;return!b&&(d=c.getElementById(this.options.idPrefix+a))?d.ftnode?d.ftnode:null:(b=b||this.rootNode,e=null,b.visit(function(b){return b.key===a?(e=b,!1):void 0},!0),e)},getRootNode:function(){return this.rootNode},getSelectedNodes:function(a){var b=[];return this.rootNode.visit(function(c){return c.selected&&(b.push(c),a===!0)?"skip":void 0}),b},hasFocus:function(){return!!this._hasFocus},info:function(){this.options.debugLevel>=1&&(Array.prototype.unshift.call(arguments,this.toString()),g("info",arguments))},loadKeyPath:function(b,c,e){function f(a,b,d){c.call(r,b,"loading"),b.load().done(function(){r.loadKeyPath.call(r,l[a],c,b).always(n(d,r))}).fail(function(){r.warn("loadKeyPath: error loading: "+a+" (parent: "+o+")"),c.call(r,b,"error"),d.reject()})}var g,h,i,j,k,l,m,o,p,q=this.options.keyPathSeparator,r=this;for(a.isArray(b)||(b=[b]),l={},i=0;i<b.length;i++)for(o=e||this.rootNode,j=b[i],j.charAt(0)===q&&(j=j.substr(1)),p=j.split(q);p.length;){if(k=p.shift(),m=o._findDirectChild(k),!m){this.warn("loadKeyPath: key not found: "+k+" (parent: "+o+")"),c.call(this,k,"error");break}if(0===p.length){c.call(this,m,"ok");break}if(m.lazy&&m.hasChildren()===d){c.call(this,m,"loaded"),l[k]?l[k].push(p.join(q)):l[k]=[p.join(q)];break}c.call(this,m,"loaded"),o=m}g=[];for(k in l)m=o._findDirectChild(k),h=new a.Deferred,g.push(h),f(k,m,h);return a.when.apply(a,g).promise()},reactivate:function(a){var b=this.activeNode;b&&(this.activeNode=null,b.setActive(),a&&b.setFocus())},reload:function(a){return this._callHook("treeClear",this),this._callHook("treeLoad",this,a)},render:function(a,b){return this.rootNode.render(a,b)},setFocus:function(a){return this._callHook("treeSetFocus",this,a)},toDict:function(a,b){var c=this.rootNode.toDict(!0,b);return a?c:c.children},toString:function(){return"<Fancytree(#"+this._id+")>"},_triggerNodeEvent:function(a,b,c,e){var f=this._makeHookContext(b,c,e),g=this.widget._trigger(a,c,f);return g!==!1&&f.result!==d?f.result:g},_triggerTreeEvent:function(a,b){var c=this._makeHookContext(this,b),e=this.widget._trigger(a,b,c);return e!==!1&&c.result!==d?c.result:e},visit:function(a){return this.rootNode.visit(a,!1)},warn:function(){Array.prototype.unshift.call(arguments,this.toString()),g("warn",arguments)}},a.extend(r.prototype,{nodeClick:function(a){var b,c,d=a.originalEvent,e=a.targetType,f=a.node;if("expander"===e)this._callHook("nodeToggleExpanded",a);else if("checkbox"===e)this._callHook("nodeToggleSelected",a),this._callHook("nodeSetFocus",a,!0);else{if(c=!1,b=!0,f.folder)switch(a.options.clickFolderMode){case 2:c=!0,b=!1;break;case 3:b=!0,c=!0}b&&(this.nodeSetFocus(a),this._callHook("nodeSetActive",a,!0)),c&&this._callHook("nodeToggleExpanded",a)}"a"===d.target.localName&&"fancytree-title"===d.target.className&&d.preventDefault()},nodeCollapseSiblings:function(a,b){var c,d,e,f=a.node;if(f.parent)for(c=f.parent.children,d=0,e=c.length;e>d;d++)c[d]!==f&&c[d].expanded&&this._callHook("nodeSetExpanded",c[d],!1,b)},nodeDblclick:function(a){"title"===a.targetType&&4===a.options.clickFolderMode&&this._callHook("nodeToggleExpanded",a),"title"===a.targetType&&a.originalEvent.preventDefault()},nodeKeydown:function(b){var c,d=b.originalEvent,e=b.node,f=b.tree,g=b.options,h=!0,i=!(d.ctrlKey||!g.autoActivate),j=a.ui.keyCode;switch(e||(this.rootNode.getFirstChild().setFocus(),e=b.node=this.focusNode,e.debug("Keydown force focus on first node")),d.which){case j.NUMPAD_ADD:case 187:f.nodeSetExpanded(b,!0);break;case j.NUMPAD_SUBTRACT:case 189:f.nodeSetExpanded(b,!1);break;case j.SPACE:g.checkbox?f.nodeToggleSelected(b):f.nodeSetActive(b,!0);break;case j.ENTER:f.nodeSetActive(b,!0);break;case j.BACKSPACE:case j.LEFT:case j.RIGHT:case j.UP:case j.DOWN:c=e.navigate(d.which,i);break;default:h=!1}h&&d.preventDefault()},nodeLoadChildren:function(b,c){var d,e,g,h=b.tree,i=b.node;return a.isFunction(c)&&(c=c()),c.url&&(d=a.extend({},b.options.ajax,c),d.debugDelay?(e=d.debugDelay,a.isArray(e)&&(e=e[0]+Math.random()*(e[1]-e[0])),i.debug("nodeLoadChildren waiting debug delay "+Math.round(e)+"ms"),d.debugDelay=!1,g=a.Deferred(function(b){setTimeout(function(){a.ajax(d).done(function(){b.resolveWith(this,arguments)}).fail(function(){b.rejectWith(this,arguments)})},e)})):g=a.ajax(d),c=new a.Deferred,g.done(function(d){var e,f;if("string"==typeof d&&a.error("Ajax request returned a string (did you get the JSON dataType wrong?)."),b.options.postProcess){if(f=h._triggerNodeEvent("postProcess",b,b.originalEvent,{response:d,error:null,dataType:this.dataType}),f.error)return e=a.isPlainObject(f.error)?f.error:{message:f.error},e=h._makeHookContext(i,null,e),void c.rejectWith(this,[e]);d=a.isArray(f)?f:d}else d&&d.hasOwnProperty("d")&&b.options.enableAspx&&(d="string"==typeof d.d?a.parseJSON(d.d):d.d);c.resolveWith(this,[d])}).fail(function(a,b,d){var e=h._makeHookContext(i,null,{error:a,args:Array.prototype.slice.call(arguments),message:d,details:a.status+": "+d});c.rejectWith(this,[e])})),a.isFunction(c.promise)&&(f(!i.isLoading()),h.nodeSetStatus(b,"loading"),c.done(function(){h.nodeSetStatus(b,"ok")}).fail(function(a){var c;c=a.node&&a.error&&a.message?a:h._makeHookContext(i,null,{error:a,args:Array.prototype.slice.call(arguments),message:a?a.message||a.toString():""}),h._triggerNodeEvent("loadError",c,null)!==!1&&h.nodeSetStatus(b,"error",c.message,c.details)})),a.when(c).done(function(b){var c;a.isPlainObject(b)&&(f(a.isArray(b.children),"source must contain (or be) an array of children"),f(i.isRoot(),"source may only be an object for root nodes"),c=b,b=b.children,delete c.children,a.extend(h.data,c)),f(a.isArray(b),"expected array of children"),i._setChildren(b),h._triggerNodeEvent("loadChildren",i)})},nodeLoadKeyPath:function(){},nodeRemoveChild:function(b,c){var d,e=b.node,g=b.options,h=a.extend({},b,{node:c}),i=e.children;return 1===i.length?(f(c===i[0]),this.nodeRemoveChildren(b)):(this.activeNode&&(c===this.activeNode||this.activeNode.isDescendantOf(c))&&this.activeNode.setActive(!1),this.focusNode&&(c===this.focusNode||this.focusNode.isDescendantOf(c))&&(this.focusNode=null),this.nodeRemoveMarkup(h),this.nodeRemoveChildren(h),d=a.inArray(c,i),f(d>=0),c.visit(function(a){a.parent=null},!0),this._callHook("treeRegisterNode",this,!1,c),g.removeNode&&g.removeNode.call(b.tree,{type:"removeNode"},h),void i.splice(d,1))},nodeRemoveChildMarkup:function(b){var c=b.node;c.ul&&(c.isRoot()?a(c.ul).empty():(a(c.ul).remove(),c.ul=null),c.visit(function(a){a.li=a.ul=null}))},nodeRemoveChildren:function(b){var c,d=b.tree,e=b.node,f=e.children,g=b.options;f&&(this.activeNode&&this.activeNode.isDescendantOf(e)&&this.activeNode.setActive(!1),this.focusNode&&this.focusNode.isDescendantOf(e)&&(this.focusNode=null),this.nodeRemoveChildMarkup(b),c=a.extend({},b),e.visit(function(a){a.parent=null,d._callHook("treeRegisterNode",d,!1,a),g.removeNode&&(c.node=a,g.removeNode.call(b.tree,{type:"removeNode"},c))}),e.children=e.lazy?[]:null,this.nodeRenderStatus(b))},nodeRemoveMarkup:function(b){var c=b.node;c.li&&(a(c.li).remove(),c.li=null),this.nodeRemoveChildMarkup(b)},nodeRender:function(b,d,e,g,h){var i,j,k,l,m,n,o,p=b.node,q=b.tree,r=b.options,s=r.aria,t=!1,u=p.parent,v=!u,w=p.children;if(v||u.ul){if(f(v||u.ul,"parent UL must exist"),v||(p.li&&(d||p.li.parentNode!==p.parent.ul)&&(p.li.parentNode!==p.parent.ul&&this.warn("unlink "+p+" (must be child of "+p.parent+")"),this.nodeRemoveMarkup(b)),p.li?this.nodeRenderStatus(b):(t=!0,p.li=c.createElement("li"),p.li.ftnode=p,p.key&&r.generateIds&&(p.li.id=r.idPrefix+p.key),p.span=c.createElement("span"),p.span.className="fancytree-node",s&&a(p.span).attr("aria-labelledby","ftal_"+p.key),p.li.appendChild(p.span),this.nodeRenderTitle(b),r.createNode&&r.createNode.call(q,{type:"createNode"},b)),r.renderNode&&r.renderNode.call(q,{type:"renderNode"},b)),w){if(v||p.expanded||e===!0){for(p.ul||(p.ul=c.createElement("ul"),(g===!0&&!h||!p.expanded)&&(p.ul.style.display="none"),s&&a(p.ul).attr("role","group"),p.li?p.li.appendChild(p.ul):p.tree.$div.append(p.ul)),l=0,m=w.length;m>l;l++)o=a.extend({},b,{node:w[l]}),this.nodeRender(o,d,e,!1,!0);for(i=p.ul.firstChild;i;)k=i.ftnode,k&&k.parent!==p?(p.debug("_fixParent: remove missing "+k,i),n=i.nextSibling,i.parentNode.removeChild(i),i=n):i=i.nextSibling;for(i=p.ul.firstChild,l=0,m=w.length-1;m>l;l++)j=w[l],k=i.ftnode,j!==k?p.ul.insertBefore(j.li,k.li):i=i.nextSibling}}else p.ul&&(this.warn("remove child markup for "+p),this.nodeRemoveChildMarkup(b));v||t&&u.ul.appendChild(p.li)}},nodeRenderTitle:function(a,b){var c,e,f,g,h,i,j=a.node,k=a.tree,l=a.options,m=l.aria,n=j.getLevel(),o=[],p=j.data.icon;b!==d&&(j.title=b),j.span&&(n<l.minExpandLevel?n>1&&(j.lazy||(j.expanded=!0),o.push(m?"<span role='button' class='fancytree-expander fancytree-expander-fixed'></span>":"<span class='fancytree-expander fancytree-expander-fixed''></span>")):o.push(m?"<span role='button' class='fancytree-expander'></span>":"<span class='fancytree-expander'></span>"),l.checkbox&&j.hideCheckbox!==!0&&!j.isStatusNode()&&o.push(m?"<span role='checkbox' class='fancytree-checkbox'></span>":"<span class='fancytree-checkbox'></span>"),g=m?" role='img'":"",(p===!0||p!==!1&&l.icons!==!1)&&(p&&"string"==typeof p?(p="/"===p.charAt(0)?p:(l.imagePath||"")+p,o.push("<img src='"+p+"' class='fancytree-icon' alt='' />")):(e=l.iconClass&&l.iconClass.call(k,j,a)||j.data.iconclass||null,o.push(e?"<span "+g+" class='fancytree-custom-icon "+e+"'></span>":"<span "+g+" class='fancytree-icon'></span>"))),f="",l.renderTitle&&(f=l.renderTitle.call(k,{type:"renderTitle"},a)||""),f||(i=j.tooltip?" title='"+j.tooltip.replace("'","&apos;")+"'":"",c=m?" id='ftal_"+j.key+"'":"",g=m?" role='treeitem'":"",h=l.titlesTabbable?" tabindex='0'":"",f="<span "+g+" class='fancytree-title'"+c+i+h+">"+j.title+"</span>"),o.push(f),j.span.innerHTML=o.join(""),this.nodeRenderStatus(a))},nodeRenderStatus:function(b){var c=b.node,d=b.tree,e=b.options,f=c.hasChildren(),g=c.isLastSibling(),h=e.aria,i=a(c.span).find(".fancytree-title"),j=e._classNames,k=[],l=c[d.statusClassPropName];l&&(k.push(j.node),d.activeNode===c&&k.push(j.active),d.focusNode===c?(k.push(j.focused),h&&i.attr("aria-activedescendant",!0)):h&&i.removeAttr("aria-activedescendant"),c.expanded?(k.push(j.expanded),h&&i.attr("aria-expanded",!0)):h&&i.removeAttr("aria-expanded"),c.folder&&k.push(j.folder),f!==!1&&k.push(j.hasChildren),g&&k.push(j.lastsib),c.lazy&&null==c.children&&k.push(j.lazy),c.partsel&&k.push(j.partsel),c._isLoading&&k.push(j.loading),c._error&&k.push(j.error),c.selected?(k.push(j.selected),h&&i.attr("aria-selected",!0)):h&&i.attr("aria-selected",!1),c.extraClasses&&k.push(c.extraClasses),k.push(f===!1?j.combinedExpanderPrefix+"n"+(g?"l":""):j.combinedExpanderPrefix+(c.expanded?"e":"c")+(c.lazy&&null==c.children?"d":"")+(g?"l":"")),k.push(j.combinedIconPrefix+(c.expanded?"e":"c")+(c.folder?"f":"")),l.className=k.join(" "),c.li&&(c.li.className=g?j.lastsib:""))},nodeSetActive:function(b,c,d){d=d||{};var e,g=b.node,h=b.tree,i=b.options,j=d.noEvents===!0,k=g===h.activeNode;return c=c!==!1,k===c?l(g):c&&!j&&this._triggerNodeEvent("beforeActivate",g,b.originalEvent)===!1?m(g,["rejected"]):void(c?(h.activeNode&&(f(h.activeNode!==g,"node was active (inconsistency)"),e=a.extend({},b,{node:h.activeNode}),h.nodeSetActive(e,!1),f(null===h.activeNode,"deactivate was out of sync?")),i.activeVisible&&g.makeVisible({scrollIntoView:!1}),h.activeNode=g,h.nodeRenderStatus(b),h.nodeSetFocus(b),j||h._triggerNodeEvent("activate",g,b.originalEvent)):(f(h.activeNode===g,"node was not active (inconsistency)"),h.activeNode=null,this.nodeRenderStatus(b),j||b.tree._triggerNodeEvent("deactivate",g,b.originalEvent)))},nodeSetExpanded:function(b,c,e){e=e||{};var f,g,h,i,j,k,n=b.node,o=b.tree,p=b.options,q=e.noAnimation===!0,r=e.noEvents===!0;if(c=c!==!1,n.expanded&&c||!n.expanded&&!c)return l(n);if(c&&!n.lazy&&!n.hasChildren())return l(n);if(!c&&n.getLevel()<p.minExpandLevel)return m(n,["locked"]);if(!r&&this._triggerNodeEvent("beforeExpand",n,b.originalEvent)===!1)return m(n,["rejected"]);if(q||n.isVisible()||(q=e.noAnimation=!0),g=new a.Deferred,c&&!n.expanded&&p.autoCollapse){j=n.getParentList(!1,!0),k=p.autoCollapse;
+try{for(p.autoCollapse=!1,h=0,i=j.length;i>h;h++)this._callHook("nodeCollapseSiblings",j[h],e)}finally{p.autoCollapse=k}}return g.done(function(){c&&p.autoScroll&&!q?n.getLastChild().scrollIntoView(!0,{topNode:n}).always(function(){r||b.tree._triggerNodeEvent(c?"expand":"collapse",b)}):r||b.tree._triggerNodeEvent(c?"expand":"collapse",b)}),f=function(d){var e,f,g,h;if(n.expanded=c,o._callHook("nodeRender",b,!1,!1,!0),n.ul)if(g="none"!==n.ul.style.display,h=!!n.expanded,g===h)n.warn("nodeSetExpanded: UL.style.display already set");else{if(p.fx&&!q)return e=p.fx.duration||200,f=p.fx.easing,void a(n.ul).animate(p.fx,e,f,function(){d()});n.ul.style.display=n.expanded||!parent?"":"none"}d()},c&&n.lazy&&n.hasChildren()===d?n.load().done(function(){g.notifyWith&&g.notifyWith(n,["loaded"]),f(function(){g.resolveWith(n)})}).fail(function(a){f(function(){g.rejectWith(n,["load failed ("+a+")"])})}):f(function(){g.resolveWith(n)}),g.promise()},nodeSetFocus:function(b,c){var d,e=b.tree,f=b.node;if(c=c!==!1,e.focusNode){if(e.focusNode===f&&c)return;d=a.extend({},b,{node:e.focusNode}),e.focusNode=null,this._triggerNodeEvent("blur",d),this._callHook("nodeRenderStatus",d)}c&&(this.hasFocus()||(f.debug("nodeSetFocus: forcing container focus"),this._callHook("treeSetFocus",b,!0,!0)),f.makeVisible({scrollIntoView:!1}),e.focusNode=f,this._triggerNodeEvent("focus",b),b.options.autoScroll&&f.scrollIntoView(),this._callHook("nodeRenderStatus",b))},nodeSetSelected:function(a,b){var c=a.node,d=a.tree,e=a.options;if(b=b!==!1,c.debug("nodeSetSelected("+b+")",a),!c.unselectable){if(c.selected&&b||!c.selected&&!b)return!!c.selected;if(this._triggerNodeEvent("beforeSelect",c,a.originalEvent)===!1)return!!c.selected;b&&1===e.selectMode?d.lastSelectedNode&&d.lastSelectedNode.setSelected(!1):3===e.selectMode&&(c.selected=b,c.fixSelection3AfterClick()),c.selected=b,this.nodeRenderStatus(a),d.lastSelectedNode=b?c:null,d._triggerNodeEvent("select",a)}},nodeSetStatus:function(b,c,d,e){function f(){var a=h.children?h.children[0]:null;if(a&&a.isStatusNode()){try{h.ul&&(h.ul.removeChild(a.li),a.li=null)}catch(b){}1===h.children.length?h.children=[]:h.children.shift()}}function g(b,c){var d=h.children?h.children[0]:null;return d&&d.isStatusNode()?(a.extend(d,b),d.statusNodeType=c,i._callHook("nodeRender",d),i._callHook("nodeRenderTitle",d)):(b.key="_statusNode",h._setChildren([b]),h.children[0].statusNodeType=c,i.render()),h.children[0]}var h=b.node,i=b.tree;switch(c){case"ok":f(),h._isLoading=!1,h._error=null,h.renderStatus();break;case"loading":h.parent||g({title:i.options.strings.loading+(d?" ("+d+") ":""),tooltip:e,extraClasses:"fancytree-statusnode-wait"},c),h._isLoading=!0,h._error=null,h.renderStatus();break;case"error":g({title:i.options.strings.loadError+(d?" ("+d+") ":""),tooltip:e,extraClasses:"fancytree-statusnode-error"},c),h._isLoading=!1,h._error={message:d,details:e},h.renderStatus();break;default:a.error("invalid node status "+c)}},nodeToggleExpanded:function(a){return this.nodeSetExpanded(a,!a.node.expanded)},nodeToggleSelected:function(a){return this.nodeSetSelected(a,!a.node.selected)},treeClear:function(a){var b=a.tree;b.activeNode=null,b.focusNode=null,b.$div.find(">ul.fancytree-container").empty(),b.rootNode.children=null},treeCreate:function(){},treeDestroy:function(){},treeInit:function(a){this.treeLoad(a)},treeLoad:function(b,c){var d,f,g,h=b.tree,i=b.widget.element,j=a.extend({},b,{node:this.rootNode});if(h.rootNode.children&&this.treeClear(b),c=c||this.options.source)"string"==typeof c&&e();else switch(d=i.data("type")||"html"){case"html":f=i.find(">ul:first"),f.addClass("ui-fancytree-source ui-helper-hidden"),c=a.ui.fancytree.parseHtml(f),this.data=a.extend(this.data,o(f));break;case"json":c=a.parseJSON(i.text()),c.children&&(c.title&&(h.title=c.title),c=c.children);break;default:a.error("Invalid data-type: "+d)}return g=this.nodeLoadChildren(j,c).done(function(){h.render(),3===b.options.selectMode&&h.rootNode.fixSelection3FromEndNodes(),h._triggerTreeEvent("init",!0)}).fail(function(){h.render(),h._triggerTreeEvent("init",!1)})},treeRegisterNode:function(){},treeSetFocus:function(a,b){b=b!==!1,b!==this.hasFocus()&&(this._hasFocus=b,this.$container.toggleClass("fancytree-treefocus",b),this._triggerTreeEvent(b?"focusTree":"blurTree"))}}),a.widget("ui.fancytree",{options:{activeVisible:!0,ajax:{type:"GET",cache:!1,dataType:"json"},aria:!1,autoActivate:!0,autoCollapse:!1,autoScroll:!1,checkbox:!1,clickFolderMode:4,debugLevel:null,disabled:!1,enableAspx:!0,extensions:[],fx:{height:"toggle",duration:200},generateIds:!1,icons:!0,id:null,idPrefix:"ft_",keyboard:!0,keyPathSeparator:"/",minExpandLevel:1,scrollOfs:{top:0,bottom:0},scrollParent:null,selectMode:2,strings:{loading:"Loading&#8230;",loadError:"Load error!"},tabbable:!0,titlesTabbable:!1,_classNames:{node:"fancytree-node",folder:"fancytree-folder",combinedExpanderPrefix:"fancytree-exp-",combinedIconPrefix:"fancytree-ico-",hasChildren:"fancytree-has-children",active:"fancytree-active",selected:"fancytree-selected",expanded:"fancytree-expanded",lazy:"fancytree-lazy",focused:"fancytree-focused",partsel:"fancytree-partsel",lastsib:"fancytree-lastsib",loading:"fancytree-loading",error:"fancytree-error"},lazyLoad:null,postProcess:null},_create:function(){this.tree=new r(this),this.$source=this.source||"json"===this.element.data("type")?this.element:this.element.find(">ul:first");var b,c,e,g=this.options.extensions,h=this.tree;for(e=0;e<g.length;e++)c=g[e],b=a.ui.fancytree._extensions[c],b||a.error("Could not apply extension '"+c+"' (it is not registered, did you forget to include it?)"),this.tree.options[c]=a.extend(!0,{},b.options,this.tree.options[c]),f(this.tree.ext[c]===d,"Extension name must not exist as Fancytree.ext attribute: '"+c+"'"),this.tree.ext[c]={},k(this.tree,h,b,c),h=b;this.tree._callHook("treeCreate",this.tree)},_init:function(){this.tree._callHook("treeInit",this.tree),this._bind()},_setOption:function(b,c){var d=!0,e=!1;switch(b){case"aria":case"checkbox":case"icons":case"minExpandLevel":case"tabbable":this.tree._callHook("treeCreate",this.tree),e=!0;break;case"source":d=!1,this.tree._callHook("treeLoad",this.tree,c)}this.tree.debug("set option "+b+"="+c+" <"+typeof c+">"),d&&a.Widget.prototype._setOption.apply(this,arguments),e&&this.tree.render(!0,!1)},destroy:function(){this._unbind(),this.tree._callHook("treeDestroy",this.tree),this.tree.$div.find(">ul.fancytree-container").remove(),this.$source&&this.$source.removeClass("ui-helper-hidden"),a.Widget.prototype.destroy.call(this)},_unbind:function(){var b=this.tree._ns;this.element.unbind(b),this.tree.$container.unbind(b),a(c).unbind(b)},_bind:function(){var a=this,b=this.options,c=this.tree,d=c._ns;this._unbind(),c.$container.on("focusin"+d+" focusout"+d,function(a){var b=t.getNode(a),d="focusin"===a.type;b?c._callHook("nodeSetFocus",b,d):c._callHook("treeSetFocus",c,d)}).on("selectstart"+d,"span.fancytree-title",function(a){a.preventDefault()}).on("keydown"+d,function(a){if(b.disabled||b.keyboard===!1)return!0;var d,e=c.focusNode,f=c._makeHookContext(e||c,a),g=c.phase;try{return c.phase="userEvent",d=e?c._triggerNodeEvent("keydown",e,a):c._triggerTreeEvent("keydown",a),"preventNav"===d?d=!0:d!==!1&&(d=c._callHook("nodeKeydown",f)),d}finally{c.phase=g}}).on("click"+d+" dblclick"+d,function(c){if(b.disabled)return!0;var d,e=t.getEventTarget(c),f=e.node,g=a.tree,h=g.phase;if(!f)return!0;d=g._makeHookContext(f,c);try{switch(g.phase="userEvent",c.type){case"click":return d.targetType=e.type,g._triggerNodeEvent("click",d,c)===!1?!1:g._callHook("nodeClick",d);case"dblclick":return d.targetType=e.type,g._triggerNodeEvent("dblclick",d,c)===!1?!1:g._callHook("nodeDblclick",d)}}finally{g.phase=h}})},getActiveNode:function(){return this.tree.activeNode},getNodeByKey:function(a){return this.tree.getNodeByKey(""+a)},getRootNode:function(){return this.tree.rootNode},getTree:function(){return this.tree}}),t=a.ui.fancytree,a.extend(a.ui.fancytree,{version:"2.4.1",buildType: "production",debugLevel: 1,_nextId:1,_nextNodeKey:1,_extensions:{},_FancytreeClass:r,_FancytreeNodeClass:q,jquerySupports:{positionMyOfs:i(a.ui.version,1,9)},assert:function(a,b){return f(a,b)},debounce:function(a,b,c,d){var e;return 3===arguments.length&&"boolean"!=typeof c&&(d=c,c=!1),function(){var f=arguments;d=d||this,c&&!e&&b.apply(d,f),clearTimeout(e),e=setTimeout(function(){c||b.apply(d,f),e=null},a)}},debug:function(){a.ui.fancytree.debugLevel>=2&&g("log",arguments)},error:function(){g("error",arguments)},escapeHtml:function(a){return(""+a).replace(/[&<>"'\/]/g,function(a){return u[a]})},unescapeHtml:function(a){var b=c.createElement("div");return b.innerHTML=a,0===b.childNodes.length?"":b.childNodes[0].nodeValue},getEventTargetType:function(a){return this.getEventTarget(a).type},getEventTarget:function(b){var c=b&&b.target?b.target.className:"",e={node:this.getNode(b.target),type:d};return/\bfancytree-title\b/.test(c)?e.type="title":/\bfancytree-expander\b/.test(c)?e.type=e.node.hasChildren()===!1?"prefix":"expander":/\bfancytree-checkbox\b/.test(c)||/\bfancytree-radio\b/.test(c)?e.type="checkbox":/\bfancytree-icon\b/.test(c)?e.type="icon":/\bfancytree-node\b/.test(c)?e.type="title":b&&b.target&&a(b.target).closest(".fancytree-title").length&&(e.type="title"),e},getNode:function(a){if(a instanceof q)return a;for(a.selector!==d?a=a[0]:a.originalEvent!==d&&(a=a.target);a;){if(a.ftnode)return a.ftnode;a=a.parentNode}return null},info:function(){a.ui.fancytree.debugLevel>=1&&g("info",arguments)},parseHtml:function(b){var c,e,f,g,h,i,j,k,l=b.find(">li"),m=[];return l.each(function(){var l,n=a(this),p=n.find(">span:first",this),q=p.length?null:n.find(">a:first"),r={tooltip:null,data:{}};for(p.length?r.title=p.html():q&&q.length?(r.title=q.html(),r.data.href=q.attr("href"),r.data.target=q.attr("target"),r.tooltip=q.attr("title")):(r.title=n.html(),g=r.title.search(/<ul/i),g>=0&&(r.title=r.title.substring(0,g))),r.title=a.trim(r.title),e=0,f=v.length;f>e;e++)r[v[e]]=d;for(j=this.className.split(" "),c=[],e=0,f=j.length;f>e;e++)k=j[e],w[k]?r[k]=!0:c.push(k);if(r.extraClasses=c.join(" "),h=n.attr("title"),h&&(r.tooltip=h),h=n.attr("id"),h&&(r.key=h),l=o(n),l&&!a.isEmptyObject(l)){for(e=0,f=x.length;f>e;e++)h=x[e],i=l[h],null!=i&&(delete l[h],r[h]=i);a.extend(r.data,l)}b=n.find(">ul:first"),r.children=b.length?a.ui.fancytree.parseHtml(b):r.lazy?d:null,m.push(r)}),m},registerExtension:function(b){f(null!=b.name,"extensions must have a `name` property."),f(null!=b.version,"extensions must have a `version` property."),a.ui.fancytree._extensions[b.name]=b},warn:function(){g("warn",arguments)}})}(jQuery,window,document);
\ No newline at end of file
diff --git a/dist/src/jquery.fancytree.childcounter.js b/dist/src/jquery.fancytree.childcounter.js
index cb2b66cb..ec3c50fa 100644
--- a/dist/src/jquery.fancytree.childcounter.js
+++ b/dist/src/jquery.fancytree.childcounter.js
@@ -19,8 +19,8 @@
  * Released under the MIT license
  * https://github.com/mar10/fancytree/wiki/LicenseInfo
  *
- * @version 2.4.0
- * @date 2014-09-21T13:14
+ * @version 2.4.1
+ * @date 2014-09-23T19:33
  */
 
 // To keep the global namespace clean, we wrap everything in a closure
diff --git a/dist/src/jquery.fancytree.clones.js b/dist/src/jquery.fancytree.clones.js
index a673d0c6..4eb16791 100644
--- a/dist/src/jquery.fancytree.clones.js
+++ b/dist/src/jquery.fancytree.clones.js
@@ -9,8 +9,8 @@
  * Released under the MIT license
  * https://github.com/mar10/fancytree/wiki/LicenseInfo
  *
- * @version 2.4.0
- * @date 2014-09-21T13:14
+ * @version 2.4.1
+ * @date 2014-09-23T19:33
  */
 
 ;(function($, window, document, undefined) {
diff --git a/dist/src/jquery.fancytree.columnview.js b/dist/src/jquery.fancytree.columnview.js
index fef687c2..1997dc2c 100644
--- a/dist/src/jquery.fancytree.columnview.js
+++ b/dist/src/jquery.fancytree.columnview.js
@@ -9,8 +9,8 @@
  * Released under the MIT license
  * https://github.com/mar10/fancytree/wiki/LicenseInfo
  *
- * @version 2.4.0
- * @date 2014-09-21T13:14
+ * @version 2.4.1
+ * @date 2014-09-23T19:33
  */
 
 ;(function($, window, document, undefined) {
diff --git a/dist/src/jquery.fancytree.debug.js b/dist/src/jquery.fancytree.debug.js
index f9ce43ae..f10bb2c0 100644
--- a/dist/src/jquery.fancytree.debug.js
+++ b/dist/src/jquery.fancytree.debug.js
@@ -9,8 +9,8 @@
  * Released under the MIT license
  * https://github.com/mar10/fancytree/wiki/LicenseInfo
  *
- * @version 2.4.0
- * @date 2014-09-21T13:14
+ * @version 2.4.1
+ * @date 2014-09-23T19:33
  */
 
 ;(function($, window, document, undefined) {
diff --git a/dist/src/jquery.fancytree.dnd.js b/dist/src/jquery.fancytree.dnd.js
index d352c836..322edf6c 100644
--- a/dist/src/jquery.fancytree.dnd.js
+++ b/dist/src/jquery.fancytree.dnd.js
@@ -9,8 +9,8 @@
  * Released under the MIT license
  * https://github.com/mar10/fancytree/wiki/LicenseInfo
  *
- * @version 2.4.0
- * @date 2014-09-21T13:14
+ * @version 2.4.1
+ * @date 2014-09-23T19:33
  */
 
 ;(function($, window, document, undefined) {
diff --git a/dist/src/jquery.fancytree.edit.js b/dist/src/jquery.fancytree.edit.js
index f1a94ad2..1715e1f4 100644
--- a/dist/src/jquery.fancytree.edit.js
+++ b/dist/src/jquery.fancytree.edit.js
@@ -9,8 +9,8 @@
  * Released under the MIT license
  * https://github.com/mar10/fancytree/wiki/LicenseInfo
  *
- * @version 2.4.0
- * @date 2014-09-21T13:14
+ * @version 2.4.1
+ * @date 2014-09-23T19:33
  */
 
 ;(function($, window, document, undefined) {
diff --git a/dist/src/jquery.fancytree.filter.js b/dist/src/jquery.fancytree.filter.js
index b3b11f0c..9b4e6993 100644
--- a/dist/src/jquery.fancytree.filter.js
+++ b/dist/src/jquery.fancytree.filter.js
@@ -9,8 +9,8 @@
  * Released under the MIT license
  * https://github.com/mar10/fancytree/wiki/LicenseInfo
  *
- * @version 2.4.0
- * @date 2014-09-21T13:14
+ * @version 2.4.1
+ * @date 2014-09-23T19:33
  */
 
 ;(function($, window, document, undefined) {
diff --git a/dist/src/jquery.fancytree.glyph.js b/dist/src/jquery.fancytree.glyph.js
index 85d01865..088fc47d 100644
--- a/dist/src/jquery.fancytree.glyph.js
+++ b/dist/src/jquery.fancytree.glyph.js
@@ -9,8 +9,8 @@
  * Released under the MIT license
  * https://github.com/mar10/fancytree/wiki/LicenseInfo
  *
- * @version 2.4.0
- * @date 2014-09-21T13:14
+ * @version 2.4.1
+ * @date 2014-09-23T19:33
  */
 
 ;(function($, window, document, undefined) {
diff --git a/dist/src/jquery.fancytree.gridnav.js b/dist/src/jquery.fancytree.gridnav.js
index 6b54f2aa..ade13d23 100644
--- a/dist/src/jquery.fancytree.gridnav.js
+++ b/dist/src/jquery.fancytree.gridnav.js
@@ -9,8 +9,8 @@
  * Released under the MIT license
  * https://github.com/mar10/fancytree/wiki/LicenseInfo
  *
- * @version 2.4.0
- * @date 2014-09-21T13:14
+ * @version 2.4.1
+ * @date 2014-09-23T19:33
  */
 
 ;(function($, window, document, undefined) {
diff --git a/dist/src/jquery.fancytree.js b/dist/src/jquery.fancytree.js
index 1ce3dcb1..65573b36 100644
--- a/dist/src/jquery.fancytree.js
+++ b/dist/src/jquery.fancytree.js
@@ -7,8 +7,8 @@
  * Released under the MIT license
  * https://github.com/mar10/fancytree/wiki/LicenseInfo
  *
- * @version 2.4.0
- * @date 2014-09-21T13:14
+ * @version 2.4.1
+ * @date 2014-09-23T19:33
  */
 
 /** Core Fancytree module.
@@ -844,7 +844,7 @@ FancytreeNode.prototype = /** @lends FancytreeNode# */{
 			}
 			return true;
 		}
-		return ( this.children && this.children.length );
+		return !!( this.children && this.children.length );
 	},
 	/** Return true if node has keyboard focus.
 	 * @returns {boolean}
@@ -3905,7 +3905,7 @@ $.extend($.ui.fancytree,
 	/** @lends Fancytree_Static# */
 	{
 	/** @type {string} */
-	version: "2.4.0",      // Set to semver by 'grunt release'
+	version: "2.4.1",      // Set to semver by 'grunt release'
 	/** @type {string} */
 	buildType: "production", // Set to 'production' by 'grunt build'
 	/** @type {int} */
diff --git a/dist/src/jquery.fancytree.menu.js b/dist/src/jquery.fancytree.menu.js
index 67858cec..2f60f2a9 100644
--- a/dist/src/jquery.fancytree.menu.js
+++ b/dist/src/jquery.fancytree.menu.js
@@ -11,8 +11,8 @@
  * Released under the MIT license
  * https://github.com/mar10/fancytree/wiki/LicenseInfo
  *
- * @version 2.4.0
- * @date 2014-09-21T13:14
+ * @version 2.4.1
+ * @date 2014-09-23T19:33
  */
 
 ;(function($, window, document, undefined) {
diff --git a/dist/src/jquery.fancytree.persist.js b/dist/src/jquery.fancytree.persist.js
index 722d9f5b..84d6c9cc 100644
--- a/dist/src/jquery.fancytree.persist.js
+++ b/dist/src/jquery.fancytree.persist.js
@@ -11,8 +11,8 @@
  * Released under the MIT license
  * https://github.com/mar10/fancytree/wiki/LicenseInfo
  *
- * @version 2.4.0
- * @date 2014-09-21T13:14
+ * @version 2.4.1
+ * @date 2014-09-23T19:33
  */
 
 ;(function($, window, document, undefined) {
diff --git a/dist/src/jquery.fancytree.table.js b/dist/src/jquery.fancytree.table.js
index 2e291702..6251f3ba 100644
--- a/dist/src/jquery.fancytree.table.js
+++ b/dist/src/jquery.fancytree.table.js
@@ -9,8 +9,8 @@
  * Released under the MIT license
  * https://github.com/mar10/fancytree/wiki/LicenseInfo
  *
- * @version 2.4.0
- * @date 2014-09-21T13:14
+ * @version 2.4.1
+ * @date 2014-09-23T19:33
  */
 
 ;(function($, window, document, undefined) {
diff --git a/dist/src/jquery.fancytree.themeroller.js b/dist/src/jquery.fancytree.themeroller.js
index 019d3e8c..31d6cb6a 100644
--- a/dist/src/jquery.fancytree.themeroller.js
+++ b/dist/src/jquery.fancytree.themeroller.js
@@ -11,8 +11,8 @@
  * Released under the MIT license
  * https://github.com/mar10/fancytree/wiki/LicenseInfo
  *
- * @version 2.4.0
- * @date 2014-09-21T13:14
+ * @version 2.4.1
+ * @date 2014-09-23T19:33
  */
 
 ;(function($, window, document, undefined) {
diff --git a/dist/src/jquery.fancytree.wide.js b/dist/src/jquery.fancytree.wide.js
index 8186f0d6..8e4d7e78 100644
--- a/dist/src/jquery.fancytree.wide.js
+++ b/dist/src/jquery.fancytree.wide.js
@@ -9,8 +9,8 @@
  * Released under the MIT license
  * https://github.com/mar10/fancytree/wiki/LicenseInfo
  *
- * @version 2.4.0
- * @date 2014-09-21T13:14
+ * @version 2.4.1
+ * @date 2014-09-23T19:33
  */
 
 ;(function($, window, document, undefined) {
diff --git a/fancytree.jquery.json b/fancytree.jquery.json
index c0429546..6b7db88a 100644
--- a/fancytree.jquery.json
+++ b/fancytree.jquery.json
@@ -1,6 +1,6 @@
 {
   "name": "fancytree",
-  "version": "2.4.1-0",
+  "version": "2.4.1",
   "title": "Fancytree",
   "description": "Fancytree is a JavaScript dynamic tree view plugin for jQuery with support for persistence, keyboard, checkboxes, drag'n'drop, and lazy loading.",
   "homepage": "https://github.com/mar10/fancytree",
diff --git a/package.json b/package.json
index eac30d6f..07ccf05c 100644
--- a/package.json
+++ b/package.json
@@ -2,7 +2,7 @@
   "name": "jquery.fancytree",
   "title": "jQuery Fancytree Plugin",
   "description": "Fancytree is a JavaScript dynamic tree view plugin for jQuery with support for persistence, keyboard, checkboxes, drag'n'drop, and lazy loading.",
-  "version": "2.4.1-0",
+  "version": "2.4.1",
   "homepage": "https://github.com/mar10/fancytree",
   "author": {
     "name": "Martin Wendt",