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Add an AJAX activity indicator.

Whenever an AJAX call is made the HTML element with the id #spinner will be shown during the call. It will not be shown during :term:`Comet` activity.

You can add a spinner element to your page yourself or use this tag to place it somewhere on your page.

Example:

{% spinner %}

Outputs the HTML code:

<div id="spinner" class="spinner" style="display: none">
  <img alt="activity indicator" src="/lib/images/spinner.gif" />
</div>

The spinner tag accepts a single argument “image”. The “image” argument must contain the URL for the image displayed. It defaults to “/lib/images/spinner.gif”.