function agents_available() 
   {
    document.getElementById('smartbutton').innerHTML = 
    '<a href="" onClick="window.open(\'https://admin.instantservice.com/links' +
    '/7510/48169\',\'chat_client\',\'width=600,height=324,scrollbars=0\');' +
    'return false;"><img src="/images/chat_online.jpg" alt="Click To Chat"></a>';
    return true;
   }

  function agents_not_available() 
   {
    document.getElementById('smartbutton').innerHTML = 
    '<a href="mailto:sales@identicam.com"><img src="/images/chat_offline.jpg" alt="Email Us"></a> ';
    return true;
   }