title: Back Button with iFrames
body: <p>I'm using an iframe to display content that has links.  When the user clicks around in the iFrame and hits "back," it goes back in the iFrame.  This behavior is OK.  However, once they're back to the first page of the iFrame and they hit "back" again, the entire window is taken back to the previous page.  This is unwanted.</p>
  
  <p>To prevent this behavior, I've put a fake "back" button within the iFrame.  (In most cases this is bad UI, in this case, it works well).  I'd like this fake back button to only go back if the previous page is the iFrame's page -- not the entire page.  <strong>When they hit the fake back button in the iFrame, it should only move that iFrame back, nothing else.</strong>  Is there a way to do this?  Does an iFrame get its own history object?</p>
  
  <p>Something that might be of benefit: the domain of the iFrame and the main window can be assumed to be distinct.  So, if it's possible to read the "global" history object, I can check to see if the previous page was mine by checking to see if the domain is mine.  If the domain is not mine, the fake back button will be hidden or not do anything.</p>
  
  <p>Help greatly appreciated, and happy holidays!</p>