External use of Page Info

Hi all,

   I am new to this forum and not a very good programmer either. But, i
wanted to start an open source project, in which i require an parser
that could extract all the hyperlinks, embedded objects (image, flash
etc.) links, javascript links, HTML Forms with data and much more...
So, i was hoping if i could use the "Page Info" module's source of
Firefox Web Browser for that. But, i have no idea where to get it. I am
currently downloading FireFox's source but it's very big and i have no
idea where in the whole source the 'Page Info' module resides so if
someone could help me locate the source i would be very greatful.

Thanks in advance