try { 
try{ 
	_isNode: function(/* object */wh){		//	summary:		//		checks to see if wh is actually a node.		if(typeof Element == "function") {			try {				return wh instanceof Element;	//	boolean			} catch(e) {}		}else{			// best-guess			return wh && !isNaN(wh.nodeType);	//	boolean		}	},
5168	/local1/tlutelli/issta_data/temp/all_js/javascript/2007_temp/2007/5168/147cea2807ec506ef6d10483c6d65f8097efd3c9/FisheyeList.js/buggy/widget/FisheyeList.js