Panel Overflow Position Is Resetting Once Click On Image Button

I have a panel. I have fixed the width and make overflow to Auto. I have 20 image buttons inside the panel. It is on Scoll. Once I scroll the panel and from the middle, once I click one of the Image Button, the panel scoll goes top. I lost the image as that image was in the scroll middle.

How can I keep the position once I click Image button and scroll position will not change?

Please help..

Thanks in Advance.