function openChildWin () {
			var args = arguments;
			var op = (args.length == 4) ? "" : args [4];
					if ((navigator.appVersion.indexOf ("Mac", 0) != -1) && (navigator.appName.indexOf ("Mic", 0) != -1)) {
				args [2] -= 15;
				args [3] -= 15;}
					var w = window.open (args [0], args [1], "width=" + args [2] + ",height=" + args [3] + "," + op);
			if (document.images) w.focus ();
		}
				function closeChildWin () {
			window.self.close ();
}