function GetXmlHttpObject(){
	var xmlHttp;
	try{
	  // Firefox, Opera 8.0+, Safari
	  xmlHttp=new XMLHttpRequest();
	}catch (e){
		// Internet Explorer
		try{
			xmlHttp=new ActiveXObject("Msxml2.XMLHTTP");
		}catch (e){
			xmlHttp=new ActiveXObject("Microsoft.XMLHTTP");
		}
	}

	return xmlHttp;
}