function show_img(url)
{
    window.open('/display.php?obr='+url,'','width=100,height=200,resizable=yes,scrollbars=yes');
    return false;
}    

function show_img(url, titl)
{
    if (titl==null) titl='';
    window.open('/display.php?obr='+url+'&t='+titl,'','width=100,height=200,resizable=yes,scrollbars=yes');
    return false;
}