You mean you want to
scrape it?
Scraping is usually done by downloading the webpage and then parsing it server-side. The server-side code to do so isn't usually Javascript, although it of course can be (if you're using something like Node.js).
For parsing the HTML, here are some recommendations:
http://stackoverflow.com/questions/2...parser-is-best
BTW, your previous posts would indicate that you wrote "Javascript" when you meant "Java code". DON'T DO THAT.