How to cycle depend on first and last click using jquery

Hi I m working on one jquery application in which there are four buttons out of which next and previous button is working fine but i want to show the div tag depend on first and last button click. How to use jquery cycle for that. I have a count that how many div tag(pages count )is there in my application Divs are added dynamically in my application. I m taking that count from database. Is there any cycle menthod which can cycle to first amd last page which is present in the application.