AJAX :: Image "Preloader" Control?

Aug 29, 2010

I am trying to pre-load images in my MasterPage. Normally I just use Javascript like so:

[Code]....
How "should" I be doing this in an environment that contains a virtual host, one which is determined by the installer of the application. For example, the application can be installed like this:
~/someVirtualDirectory/theapp I'm considering creating a Ajax Server Control to accomplish this task, something like the below or maybe even extending the ImageButton and Hyperlink control to do this by default. Is there a much easier way I am missing?

[Code]....

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