[UPHPU] detect iframe fresh

[Wade Preston Shearer]

Is it possible to detect (javascript would be the only way I can  
imagine) when the page loaded inside of an iframe is refreshed?

Consider this: I have a page that has an iframe in it. The iframe  
contains a page that has a search box in it. I want the parent page  
to know when the form within the page inside the iframe is submitted.

Is that possible?
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