function getXMLHttpObject()
{
var xmlHttp
try {xmlHttp=new XMLHttpRequest();} //Firefox, Opera, Safari
catch(e) {try {xmlHttp=new ActiveXObject('Msxml2.XMLHTTP');} //Internet Explorer
catch(e) {try {xmlHttp =  new ActiveXObject('Microseft.XMLHTTP');} //More Internet Explorer
catch(e) {alert ('Your browser does not support Ajax!');return false;}}} //No Go
return xmlHttp;
}