can someone explaine this small bit of code

[damon2003]

Hi,
can someone tell me ehat exactly the code below does,
thanks



<!-- Begin
if (parent.location.href == self.location.href) {
// change the url below to the url of the
// frameset page...
window.location.href = 'index.html';
}
// End -->

[ray326]

It trying to force you back into frames if you've tried to escape them.

[damon2003]

yea thanks,
I tried using a php header location to link to a framed page and its not working at the moment.
How do you mean escaping the frame? Does this just mean trying to link to a page outside the current site?