var browser = "";
var strUserAgent = navigator.userAgent;

if (strUserAgent.indexOf("MSIE")!=-1 && strUserAgent.indexOf("Windows NT 5.1") !=-1) {
var oPopup = window.createPopup();
var oPopBody = oPopup.document.body;
    oPopBody.style.backgroundColor = "lightyellow";
    oPopBody.style.border = "solid black 1px";
	oPopBody.style.fontFamily = "Verdana, Arial, Helvetica, sans-serif";
	oPopBody.style.margin ="5px";
	oPopBody.style.fontSize = "10";
    oPopBody.innerHTML = "You are using Internet Explorer running on Windows XP platform.<br> Service pack 2 (SP2) does not allow external process to communicate with browser DOM. As result our JavaScript protection system does not work on this configuration.<br> Please try this page on other platform or browser (Windows 2000 or Netscape, FireFox).<br>We apologize for this inconvenience.<p>Thank you.<br>Web4w3 team.</p>";
	intY = screen.availHeight / 2 - 100;
	intX = screen.availWidth / 2 - 150;
    oPopup.show(intX, intY, 300, 200, document.body);
}