jQuery ScrollTo

Hi, quite new to jQuery.

Working on my one page website portfolio and I am using the ‘Scroll To’ script. However, I would like include so that when a fixed link at the top of the page is clicked. An active button would show, so it shows that it has been clicked… maybe even to include this when the user has scrolled past a point to its section on the page and becomes active.

Any help would be great! Or point me in the right direction.