title: .keyup() is only working once, why?
body: <p>I am using this pretty simple jquery function, but it seems to work only on the first keyup..  </p>
  
  <pre><code>$('#cmentuser').keyup(function() {
   var mess = document.getElementById('cmentuser').value;
   var dataString = 'message='+ mess; 
  
      $.ajax({  
    type: "POST",  
    url: "atuamae.org/comentbyuser.php",  
    data: dataString,  
    success: function() {  
   }  
  });
  });
  </code></pre>
  
  <p>any ideas on how to keep it active?</p>