Mod Ajax Chat 1.2 question

When the chat window refreshes, it loads the top of the messages or the top of the html page, making the user have to constantly scroll back down to the bottom to continue chatting. Are there any strategies to correct this? I'm thinking of each time stamp having an anchor and it would refresh to the latest one. Don't know how to code it though.

Or maybe code one named anchor at the bottom of the page and have the page refresh to that anchor..

Anyone?