function OpenWindow(URL, Width, Height, WindowName) {
	var nLeft = (screen.width / 2) - ((Width + 60) / 2);
	var nTop = (screen.height / 2) - ((Height + 60) / 2);
	var winOptions = "toolbar=0,resizable=0,location=0,directories=0,status=0,menubar=0,scrollbars=yes,left=";
	winOptions += nLeft + ",top=" + nTop + ",width=" + (Width + 60) + ",height=" + (Height + 60);
	var photowin = window.open(URL, WindowName, winOptions); 
    photowin.focus();
}