Move to top of thread

Glen,

Is there a way that when a somebody post a comment that there can be a link to "Move to top"? Basicly the same as "Last Post" but in reverse. The reason I ask is because some of teh posts is so long it takes you forever to get to the top to return to any other section. And sometimes you cant press "back" on your browser as you have done something previously like replied to a post or something.

Cheers