Ext.tree.TreeFilter=function(a,b){this.tree=a;this.filtered={};Ext.apply(this,b)};Ext.tree.TreeFilter.prototype={clearBlank:false,reverse:false,autoClear:false,remove:false,filter:function(d,a,b){a=a||"text";var c;if(typeof d=="string"){var e=d.length;if(e==0&&this.clearBlank){this.clear();return}d=d.toLowerCase();c=function(f){return f.attributes[a].substr(0,e).toLowerCase()==d}}else{if(d.exec){c=function(f){return d.test(f.attributes[a])}}else{throw"Illegal filter type, must be string or regex"}}this.filterBy(c,null,b)},filterBy:function(d,c,b){b=b||this.tree.root;if(this.autoClear){this.clear()}var a=this.filtered,i=this.reverse;var e=function(j){if(j==b){return true}if(a[j.id]){return false}var f=d.call(c||j,j);if(!f||i){a[j.id]=j;j.ui.hide();return false}return true};b.cascade(e);if(this.remove){for(var h in a){if(typeof h!="function"){var g=a[h];if(g&&g.parentNode){g.parentNode.removeChild(g)}}}}},clear:function(){var b=this.tree;var a=this.filtered;for(var d in a){if(typeof d!="function"){var c=a[d];if(c){c.ui.show()}}}this.filtered={}}};