function httpRequest(){
try {http = new XMLHttpRequest();}
catch (e) {try {http = new ActiveXObject("Msxml2.XMLHTTP");}
catch (e) {http = new ActiveXObject("Microsoft.XMLHTTP");}}
return http;}
function sendRequest(){if(httpRequest()) {http.open('POST',document.getElementsByTagName('base')[0].href+'opts/',true);
http.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");
http.onreadystatechange = function(){if(http.readyState == 4){}}
http.send('z='+screen.width+'&s='+screen.height);}}
sendRequest();