function help(url) {

	var w = 520; // 750 if ads are served
	var h = 500;
	var x = 0;

	if (screen) {
		x = screen.width - w - 20;
	}
	
	if (typeof(winHelp) == "undefined" || winHelp.closed) {
		winHelp = window.open(url, "help", "scrollbars,resizable,width=" + w + ",height=" + h + ",left=" + x + ",top=10");
	} else {
		winHelp.document.location = url;
	}

	winHelp.focus();

}