function ReadFile(FileName) {
	oxmlhttp = null;
	try
		{ oxmlhttp = new XMLHttpRequest();
		  oxmlhttp.overrideMimeType("text/xml");
		}
	catch(e)
		{ try
			{ oxmlhttp = new ActiveXObject("Msxml2.XMLHTTP");
			}
		catch(e)
			{ return "" 
			}
	}
	if(!oxmlhttp) return "";
	try
	{ oxmlhttp.open("GET",FileName,false);
	  oxmlhttp.send(null);
	}
	catch(e)
	{ return ""
	}

	textstring = oxmlhttp.responseText
	return textstring
}