function popupMainWindow2(url,height,width)
    {
        var wHeight = screen.height;
        var wWidth = screen.width;
	    var isHeight=Number(height);
	    var isWidth=Number(width);
	    var wTop = (wHeight - isHeight) / Number(2);
	    var wLeft = (wWidth - isWidth) / Number(2);
	    mainWindow  =   window.open(url,"_blank",'toolbar=0,location=0,directories=0,status=0,menubar=0,scrollbars=0,resizable=1,width='+isWidth+',height='+isHeight+',top='+wTop+',left='+wLeft);
	    mainWindow.focus();
    }

    function showEpisodePopup(episodeNumber)
    {
        var url = "http://stream.kuluvalley.com/cwu/episode" + episodeNumber + ".html";
        popupMainWindow2(url, 300, 500);
    }