function his_cen_popup(ktory,nazwa,time,size)
{
 if(-1 != navigator.userAgent.indexOf("MSIE"))
    {
    // MSIE
     var his_cen_win="play.php?id="+ktory+"&name="+nazwa+"&time="+time+"&size="+size;
    }
    // NN
    else
    {
     var his_cen_win="play.php?id="+ktory+"&name="+nazwa+"&time="+time+"&size="+size;
    }
 //alert(his_cen_win);
 window.open(his_cen_win,"",'status=yes,toolbar=no,menubar=no,scrollbars=no,screenX=0,screenY=0,height=340,width=510');
}