Scroll to bottom of div?

Question

I am creating a chat using Ajax requests and I\'m trying to get messages div to scroll to the bottom without much luck.

I am wrapping everything in this div:

Answer 1

small addendum: scrolls only, if last line is already visible. if scrolled a tiny bit, leaves the content where it is (attention: not tested with different font sizes. this may need some adjustments inside ">= comparison"):

var objDiv = document.getElementById(id);
var doScroll=objDiv.scrollTop>=(objDiv.scrollHeight-objDiv.clientHeight);                   

// add new content to div
$('#' + id ).append("new line at end
"); // this is jquery!

// doScroll is true, if we the bottom line is already visible
if( doScroll) objDiv.scrollTop = objDiv.scrollHeight;