I mentioned in my previous post New Site Look that, inspired by 37 Signals, I wanted to auto-scroll pages in my website in two circumstances:
The scrollTo function scrolls to the element whose selector is given. Notice how, if a comment_error exists, I make sure the form is showing first, then call scrollTo.
Also, in my code for toggling the Add Comment form, I call the function to scroll to the form.
The original post had 7 comments I'm in the process of migrating over.