You can use this script to rotate random images on your site or blog.  It requires the use of php but is very easy to install and use.  You can see it in use at hivelogic's site and also global travel source's site.  Just refresh your browser to see the changes.  All you need to do is upload the php script into your image folder and upload some different photos you want to rotate and then instead of linking to the the actual image you just link to the script inside the image folder.  The script will rotate any images within the folder so make sure they are all the same size and not too large.

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