Well it depends what side you want the timer on.
If you say that jscript didn't work then you try the meta tag "refresh".
If you want this timer to run from the server then you will have to restrict your users to Netscape browsers - as you would have to push the data to the browser.
pst ... have altered your dynamicimages to pull images from a resource dll, but as you said in a previous post, it's maybe best to keep httphandlers seperate in some cases. This is a perfect example. You don't really want to have to create a new httphandler for every image library you use ... so I'm altering it again to sepearte library from handler and then pass the library to the handler as a property.
I may change to a factory instead ... it depends on playtime ... computing might be too hard.