Here is my situation.
I have a file called iframe.html, which contains the code to for a image slideshow.
The code is somewhat like
<
This line will retrieve the whole HTML code of the frame. By using other methods instead of innerHTML you can traverse DOM of the inner document.
document.getElementById('iframe').contentWindow.document.body.innerHTML
Thing to remember is that this will work only if the frame source is on the same domain. If it is from a different domain, cross-site-scripting (XSS) protection will kick in.