function showDialogBox(url, w, h) {
	// Figure top and left (for centering on screen)
	t = Math.round((screen.height - h) / 2)-20;
	l = Math.round((screen.width - w) / 2);
	
	// Open window
	window.open(
		url,
		"",
		"width=" + w + ", height=" + h + ", top=" + t + ", left=" + l + ", menubar=no, status=no, location=no, toolbar=no, statusbar=no, status=no, scrollbars=yes, resizable=yes"
	);
	
	return false;
}