Passing parameter in Paging

Dear members, I am querying a Mysql database, which will result in 100 of records. I want to display 10 records in each page. First page it is working fine. When I navigate to second page it is not working. When I used hidden controls. Hidden controls send the details to next page only by using submit button and not by hyperlink When I used session variable. After one set of searching was over. When I trying for second search string without closing browser, changing the search string in the first search page it is still showing the old search string, unless I close the browser. Any solution for my problem Thanking you yours Karthikeyan