I'm trying to develop a site for moblie internet weather radar. The problem that I'm having is that the radar image is not being refreshed, it just keeps reloading the cached image. My question is, is there a way to force the browser to reload the image OR is there a way to load a new image(s) to fill the cache up and move the radar image out so it'll reload when the page is brought back up? If so, what's the cache size?