function cl_xmlHttpObject () 
{

	var xml_http_object;
	try 
	{
		xml_http_object = new XMLHttpRequest();
	} 
	catch(e) 
	{
 		try 
		{
			xml_http_object = new ActiveXObject("Msxml2.XMLHTTP");
		} 
		catch(e) 
		{
			try 
			{
				xml_http_object = new ActiveXObject("Microsoft.XMLHTTP");
			} 
			catch(e) 
			{
				//alert("ERROR: Your browser does not support AJAX.");
				return false;
			}
		}
	}
	return xml_http_object;
}