Lazy loading in Sharepoint webpart C#

Hi,

I want to develop a SharePoint webpart using C# with lazy loading. I am retrieving items from a SP list and displaying on the page using visual webpart. On page load, it should retrieve only ten items and on scrolling, it should retrieve next set of 10 items, repeating until it reaches the last set of items. Please help me in achieving this lazy loading functionality.

Thanks...

Harikrishna Baskaran