rem: f(xmlhttp.responseXML, url); 
add: try { f(xmlhttp.responseXML, url); } finally { tl.hideLoadingMessage(); } 
context:     var fDone = function(xmlhttp) {        f(xmlhttp.responseXML, url);    };
meta: 6925	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/6925/f317925303af45830955260c944c12ef9dbec19a/timeline.js/clean/src/main/webapp/api/scripts/timeline.js