I've been using document.getElementById(iframeName).src += '';
to reload my iframe as part of another function that's triggered from the parent page. The only reason I need the iframe page to reload is that I need the javascript on that page to rerun, so I'd much rather reload the iframe from the cache instead of redownloading it from the server. I can't figure out how to make the iframe reload from the cache though.
Also, I'd rather do it without having to reenter the iframe src in the function if possible because I'm using the same function on multiple iframes.