How does IE Developer Tool works?

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C#

Hi guys
Do you know how does Developer Tool(F12) works in IE?by working i mean how does it parses the pages?i noticed that it parses encoded pages like facebook correctlly and decodes all urls and everything!or any idea how does LinkWalker (a firefox add-on) works?i'm trying to make a small script to decode encrypted HTML source code!
any helpful link or idea is welcomed
Sorry if post was long
Tanx


Sorry it seems my question was confusing:
let me explain it this way
i search google with IE and my query is "book"
as always google displays some links as result but when i save the page it's a encoded file!i mean when i look for a individual link in the saved file i can't find it and i guess that's because it's encoded!but when i open Developer Tool
it dispays all the contents and specially links correctly!and here it is my question:
How does Developer Tool parses the page or how does it works that can decode all those lines of HTML code?
i also found a fire fox add on named LinkWalker that when you right click on any url it shows the link(also works on google search)! so do you have any idea how can i retrieve what i want from an encoded page like google or facebook or ...?
was i clear enough?
Tanx again