overrideMimeType('text\/plain; charset=x-user-defined');
		  try {
		  req.send(null)
		  if (req.status !== 200) {
			throw new Error('Unable to load file ' + url);
		  }
		  } catch (e) {
		  alert(e);
		  }

		  var responseText = req.responseText;
		  var StringFromCharCode = String.fromCharCode;
		  if (unicodeCleanUp === true) {    
			var i = 0;
			for (i = 0; i < responseText.length; i += 1) {
			  byteArray.push(StringFromCharCode(responseText.charCodeAt(i) & 0xff))
			}
			return byteArray.join(""