function getXMLHttpRequest() 
{
	xmlhttp=null;
			
	if (window.XMLHttpRequest) { xmlhttp=new XMLHttpRequest(); } // code for Mozilla, etc.
	else if (window.ActiveXObject) { xmlhttp=new ActiveXObject("Microsoft.XMLHTTP"); } // code for IE
			
	return xmlhttp;
}

function add_onclick_event()
{
	var len = document.links.length;
	for (i=0; i < len; i++) {
		var href = document.links[i].href;
		var zylom = href.indexOf('main.zylom.com');
		if (zylom > 0) {
			var begin_pos = href.indexOf('servlet/');
			var end_pos = href.indexOf("'", zylom);
			
			var spel = href.substr(begin_pos, end_pos - begin_pos);
			document.links[i].setAttribute('onclick', "count_click('"+spel+"')");
		}
	}
}

function count_click(spel)
{
	xmlhttp = getXMLHttpRequest();
	if (xmlhttp!=null) {
		var url = "";
		url = "spelletjes_link.php?rnd="+ Math.random() + "&spel=" + escape(spel) + "&noredirect=true";
	
		xmlhttp.open("GET",url,true);
		xmlhttp.send(null);
	}
}