Aha. Now you're moving along!

Your question comes up frequently. It looks as though some of the links which follow (found using Super Search with scrape web javascript as search terms) will be helpful:

?node_id=3989;BIT=scrape%20web%20javascript

Googling for javascript scrape login is another alternate... and produces hits such as [Re: JavaScript Plugin in www::Mechanize as the thread beginning at the decade-old SOPW, Links for Screen Scraping.

The links I offered earlier strongly suggest that those seeking help make sure they've done their due diligence (i.e., searching) before posting.