Rollover

Ok I have a navigation bar, and it rolls over from WHITE to GOLD text images. What I would like it to do is…say I click on “portfolio” then it would remain gold, signifying that you are on the portfolio page.

Is there a code to tell the button to display what is in a certain keyframe (in this case, the over keyframe?)

I have attached an image with my explaination.

PXC