[thelist] image caching

Hi all,
I have this page where people can change the image related to a database 
row. The name of the image stays the same.

but when they reload the page to see the new image, it's cached ofcourse 
and the old one shows up.

I can't find a way to fix it, all I can think of is having some javascript 
emptying the browsers cache. Is that possible??

Thanks
peter
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