function getAjaxObject() {
	var xmlHttp;
	try {
		// Firefox, Opera 8.0+, Safari  
		xmlHttp=new XMLHttpRequest();
	}
	catch (e) {  // Internet Explorer
		try {
			xmlHttp=new ActiveXObject("Msxml2.XMLHTTP");
		}
		catch (e)
	    {
			try {
				xmlHttp=new ActiveXObject("Microsoft.XMLHTTP");
			}
	    	catch (e) {
		    	alert("Your browser does not support AJAX!");
		    	return false;
		    }
		}
	}
	
	return xmlHttp;
}