function ShowMenu(URL, WinTitle, WinWidth, WinHeight, WinLeft, WinTop){
	attr = "resizable=no,width=" + WinWidth + ",height=" + WinHeight + ",screenX=" + WinLeft + ",screenY=" + WinTop + ",left=" + WinLeft + ",top=" + WinTop + "";
	msgWindow=open(URL, WinTitle, attr);
	if (msgWindow.opener == null) msgWindow.opener = self;
}