//  Create XMLHttpRequest Object
function createXHR() {
		var xhr ;
		try {
				xhr = new ActiveXObject( "Msxml2.XMLHTTP" ) ;
		} catch ( e ) {
				try {
						xhr = new ActiveXObject( "Microsoft.XMLHTTP" ) ;
				} catch ( E ) {
						xhr = false ;
				}
		}
		
		if ( ( ! xhr ) && ( ( typeof XMLHttpRequest ) != 'undefined' ) ) {
				xhr = new XMLHttpRequest() ;
		}
		
		return xhr ;
}