function getHttpObject(){
	var xmlhttp;
	if(window.ActiveXObject){
		try{
			xmlhttp = new ActiveXObject("Msxml12.XMLHTTP");
		} catch(e) {
			try {
				xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");
			} catch (e){
				xmlhttp = false;
			}
		}
	} else {
		try {
			xmlhttp = new XMLHttpRequest();
		} catch(e) {
			xmlhttp =false;
		}
	}
	return xmlhttp;
}