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   1  var captcha = {
   2      refresh: function()
   3      {
   4          var imagehash = $('imagehash').value;
   5          this.spinner = new ActivityIndicator("body", {image: imagepath + "/spinner_big.gif"});
   6          new Ajax.Request('xmlhttp.php?action=refresh_captcha&imagehash='+imagehash, {
   7              method: 'get',
   8              onComplete: function(request) { captcha.refresh_complete(request); }
   9          });
  10          return false;
  11      },
  12  
  13      refresh_complete: function(request)
  14      {
  15          if(request.responseText.match(/<error>(.*)<\/error>/))
  16          {
  17              message = request.responseText.match(/<error>(.*)<\/error>/);
  18  
  19              if(!message[1])
  20              {
  21                  message[1] = "An unknown error occurred.";
  22              }
  23  
  24              alert('There was an error fetching the new captcha.\n\n'+message[1]);
  25          }
  26          else if(request.responseText)
  27          {
  28              $('captcha_img').src = "captcha.php?action=regimage&imagehash="+request.responseText;
  29              $('imagehash').value = request.responseText;
  30          }
  31  
  32          if(this.spinner)
  33          {
  34              this.spinner.destroy();
  35              this.spinner = '';
  36          }
  37  
  38          Element.removeClassName('imagestring_status', "validation_success");
  39          Element.removeClassName('imagestring_status', "validation_error");
  40          Element.removeClassName('imagestring_status', "validation_loading");
  41          $('imagestring_status').innerHTML = '';
  42          $('imagestring_status').hide();
  43          $('imagestring').className = 'textbox';
  44          $('imagestring').value = '';
  45      }
  46  };