function openWin(url,wx,wy,wname,scroll) {
	px = (screen.width  - wx) / 2;
	py = (screen.height - wy) / 2;
	subWin = window.open(url,"" + wname + "", "location=no,menubar=no,resizable=no,scrollbars=" + scroll + ",status=no,toolbar=no,left=" + px + ",top=" + py + ",width=" + wx + ",height=" + wy + "");
	subWin.focus();
}