rem: p.border_text = bt[0].firstChild.nodeValue; 
add: if (bt[0].firstChild != null){p.border_text = bt[0].firstChild.nodeValue;}else{p.border_text = "";} 
context: 	 function updatePolyline(rslt){			var xml = rslt.responseXML;			var n = editObjectN;			var p = bLData[n];				 		//shorten var names			var id = xml.documentElement.getElementsByTagName('polyline_id');						p.polyline_id = id[0].firstChild.nodeValue;			var nm = xml.documentElement.getElementsByTagName('name');			p.name = nm[0].firstChild.nodeValue;				var dt = xml.documentElement.getElementsByTagName('points_data');			var points_data = dt[0].firstChild.nodeValue;	 		p.points_data = points_data.split(",");						var bt = xml.documentElement.getElementsByTagName('border_text');			p.border_text = bt[0].firstChild.nodeValue;			var zi = xml.documentElement.getElementsByTagName('zindex');			p.zindex = parseInt(zi[0].firstChild.nodeValue);									//remove old version			map.removeOverlay(p.polyline);			//create polyline			attachPolyline(n);			removeAssistant();	}
meta: 1713	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/1713/9f985255db12c77c33adbecc5e8cb8cfc60aef62/js_edit_methods.js/buggy/templates/js_edit_methods.js