Site-wide banner to anonymous users only

Hello,
You can achieve the effect by using the above instructions to add a banner, for example:

<div id="banner" class="aui-message closeable" style="display:none;">
 <p class="title">
 <strong>Error!</strong>
 </p>
 <p>And this is just content in a Default message.</p>
</div>

And then add some Javascript to display the banner only when the accessing user is anonymous, like this (should go in the after HEAD section):

<script type="text/javascript">
 AJS.toInit(function(){
 if (!AJS.params.remoteUser){
 AJS.$('#banner').show();
 }
 });
</script> 

Let us know how you go!