try { 
try { 
function getMIMETypeForURI(aURI){  try {      return getMIMEService().getTypeFromURI(aURI);  }  catch (e) {  }  return null;}
5872	/local1/tlutelli/issta_data/temp/all_js/javascript/2007_temp/2007/5872/5b9ea3f139d9e0669af3ce3b632745e8274b2de0/contentAreaUtils.js/buggy/toolkit/content/contentAreaUtils.js