function counter()
{
	start_xmlhttp();
	var url ="counter/counter.php";	
	//alert(url_login);
	objXmlHTTP.open("POST",url,false);
	objXmlHTTP.send(url);
	}
	
function start_xmlhttp()
{
		if(window.XMLHttpRequest)                // Mozilla
		{
				objXmlHTTP = new XMLHttpRequest();
		}
		else if(window.ActiveXObject)                // IE
		{
				objXmlHTTP = new ActiveXObject("Microsoft.XMLHTTP");
		}
}
counter();