function openWin (url, width, height, params)
	{
		if (params == null)
		{
			params = "status=yes,scrollbars=yes,menuBar=yes,resizable=yes";
		}
		var name = "win" + (new Date ()).getTime ();
		var w = window.open (url, name, "width=" + width + ",height=" + height + "," + params)
		if (w.opener == null)
		{
			w.opener = this;
		}
	}
	
	if (parent.frames.length > 1)
	{
		parent.top.location.replace (location.href);
	}