rem: if(docu.documentElement.nodeName=="parsererror") 
add: if(docu.documentElement && docu.documentElement.nodeName=="parsererror") 
context: function BX_alert_checkParserError(docu){    if(docu.documentElement.nodeName=="parsererror")    {        var alerttext = "Parse Error: \n \n";        alerttext += docu.documentElement.firstChild.data +"\n\n";        alerttext += "Sourcetext:\n\n";        alerttext += docu.documentElement.childNodes[1].firstChild.data;        alert(alerttext);        return false;    }    return true;}
meta: 791	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/791/23e4752e13536f63516c1ece4dd47e95e4cd7f52/bitfluxeditor.js/clean/src/webapp/lenya/resources/misc/bitflux/bxe/js/bitfluxeditor.js