var usd = screen.width + "x" + screen.height ; 
var usc = screen.colorDepth;
var apn = escape(navigator.appName);
var ver = escape(navigator.appVersion);


document.write('<IMG Src="scripts/user.php?usd=' + usd + '&usc=' + usc + '&ver=' + ver + '&apn=' + apn + '&scr=' + parent.cstyle + '" Height="0" Width="0">');