var XMLHTTP = null;
if ( window.XMLHttpRequest )
{
	XMLHTTP = new XMLHttpRequest;
}
else if ( window.ActiveXObject )
{
	try
	{
		XMLHTTP = new ActiveXObject ( "Msxml2.XMLHTTP" );
	}
	catch ( ex )
	{
		try
		{
			XMLHTTP = new ActiveXObject ( "Microsoft.XMLHTTP" );
		}
		catch ( ex ) { }
	}
}