function OpenPopup(aurl, w, h, popupname) {
	var l = Math.round((screen.width - w) / 2)
	var t = Math.round((screen.height - h - 40) / 2)
	var options = "left=" + l + ",top=" + t + ",width=" + w + ",height=" + h + ",statusbar=yes,toolbar=no,menubar=no,scrollbars=no,resizable"
	var popup = window.open(aurl, popupname, options)
	return popup
}