var mynewwind;

function newWin(loc, width, height) {
	mynewwind = window.open(loc, 'NewWindow', 'scrollbars=yes,resizable=yes,width='+width+',height='+height+',left=' + ((screen.availWidth - width)/2) + ',top=' + ((screen.availHeight - height)/2));
}

function showcart(num) {
//	alert((mynewwind && !mynewwind.closed));
	if (mynewwind && !mynewwind.closed) {
		mynewwind.close();
	}

	newWin('/images/pixel.gif', 640, 480);

	if (num == "1") {
		document._xclick.submit();
	} else {
		return true;
	}
}