Since it's initial posting the solution provided there has been tweaked and fine tuned based on use and reader feedback. A lot of the feedback and comments were about the inability for readers to use that particular solution because they did not have access to modify the PHP source code. One such example is that of Bloggers, who have access to the Blogger templating system, but not the code.

In response to this feedback I have put together a free random background image script generator tool, which will generate a self contained block of Javascript which can be pasted into any template or web page, to provide random background image selection and application to a single element on that page.

Comments and feedback are encouraged, as are links from any sites that may find a use for the script!