function oopsPopup() {

   var URLtoOpen = "http://www.w5.com/skype.html";
	var windowName = "oops";
	var popW = 540, popH = 415;
	var scrollB = 'auto';
	w = screen.availWidth;
	h = screen.availHeight;
	var leftPos = (w-popW)/2, topPos = (h-popH)/2;
	window.open(URLtoOpen, windowName,'width=' + popW + ',height=' + popH + ',scrollbars=' + scrollB + ',screenx=' +leftPos +',screeny=' +topPos +',top=' +topPos +',left=' +leftPos);
	//return false;
}