How to navigate through a web page displayed in iframe ?

Hi all...
I am developing a small appication where i want to display website page
in an iframe. My JSP contains a text field (where i type URL), a button(on clickking button the URL of the text field is to be passed to iframe as source) and an iframe (to display the page at specified URL).
I have couple of doubts..
1. How should i use the same iframe to display further pages if i click on any link of the current displayed page ? (i tried this, but every time the next page wont get open inside the iframe and it appears as a normal web page.) Are there some different ways ?
2. Can i read the page data that is displayed in iframe if i click some other button on my JSP say "Extract" ?
I am using struts 1.1 for my application.

Can some one have the solution ??
Thanks in advance...

Please make sure that you CarefullyChooseOneForum for your posts. This ensures you get desired response for your post. iframes are by no means connected to JSPs.

1. take a look at how "Post reply" works here.

Please do not start multiple copies of the same thing. You are already posted your thread here with an answer: http://www.coderanch.com/t/419782/HTML-JavaScript/display-website-page-JSP-textarea

Closing this one.

Eric