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load: function(url, vars) {
		var urlScript = 'cat-xml.php?cPath=' + (this.id);
		//window.alert('attempting to load: ' + urlScript);
								new Ajax(urlScript, {
									method: 'get',
									evalScripts: true,
									update: $('loadXML')
								}).request();
	 //window.alert('completed phpscript using ' + urlScript)
		if (this.loading) return; // if this node is already loading, return
		this.loading = true;      // flag this node as loading
		
		this.toggle(false, true); // expand the node to make the loader visible
		
		this.clear();

		this.insert(this.control.loader);
		//window.alert('loading xml based on ' + urlScript)
		var f = function() {
			new XHR({
				method: 'GET',
				onSuccess: this._loaded.bind(this),
				onFailure: this._load_err.bind(this)
			}).send(url, vars || '');
		};
		//window.alert('found and successfull - now loading the xml file')
		window.setTimeout(f.bind(this), 2000); // allowing a small delay for the browser to draw the loader-icon.
		
	},