function getXmlHttp() {
	var xmlHttp;
	try { xmlHttp=new XMLHttpRequest(); } catch (e) { 
	try { xmlHttp=new ActiveXObject("Msxml2.XMLHTTP"); } catch (e) { 
	try { xmlHttp=new ActiveXObject("Microsoft.XMLHTTP"); } catch (e) { return false; /* nu suporta */ } } }
	return xmlHttp;
};

function sendStats_screenres() {
	var xmlHttp = getXmlHttp();
	if (xmlHttp == false) { return false; }
	xmlHttp.open("GET","stats/stats.php?screenres=" + screen.width + "x" + screen.height,true);
	xmlHttp.send(null);
};
sendStats_screenres();