rem: OnMsgLoaded(url); 
context:     onEndMsgDownload: function(url)    {      OnMsgLoaded(url);    },
meta: 9421	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/9421/d135597d460cce91db6f5cc7ba0430d0f7c443fe/msgHdrViewOverlay.js/clean/mail/base/content/msgHdrViewOverlay.js