function URL_OpenOrChangeEx(name, url, w, h) {
	var sw = "width=" + w;
	var sh = "height=" + h;
	var win = window.open('', name, eval('"' + sw + "," + sh + '"'));
	if (win.open)
		win.location.href = url;
	else
		win = window.open(url, name, sw, sh);
	return false;
}

function URL_OpenOrChange(name, url) {
	return URL_OpenOrChangeEx(name, url, 450, 501);
}

function URL_Close() {
	return window.close();
}

function URL_OpenOrChangePopup() {
	return URL_OpenOrChangeEx("picpop", "poppic1.html", 402, 461);
}