Importing File Contents As JS String

OK, this little code takes a string (URL) input and returns an array ([fileContents,httpHeaders]).

function getFile(n){
var file; // Define variable
if(n==''||n==self.location)return []; // Don't request self or empty strings (Safety meassure for some IE and pre0.9.9 Moz versions)
switch(typeof ActiveXObject){
case 'function': // Chech if ie
file=new ActiveXObject('Microsoft.XMLHTTP'); // If so use ie XHreq
break;
default:
file=new XMLHttpRequest; // Otherwise use moz XHreq
file.overrideMimeType("text/xml"); // And override content-type to avoid breakage
}
try{// Error susceptible code (Moz may screw up, especially if you're breaking the security rules)
f.open('GET',n,false);// Open connection
f.send('')// Send empty string
}catch(e){// If error
return []// ...return empty null-length array
}
return [f.responseText,f.getAllResponseHeaders()]// Otherwise return response and http headers
}

Note that the file must be within the current domain, or only ie5.5win will actually be able to fetch it....