What is the best way to do mouse over image scrolling?

First off, I am not a professional web developer. I develop and maintain my company website that was originally done using FrontPage and now I plan to revamp it using Expression Web 2. I can do this, no problem, but there is something I'm not sure how to do.

I want to have a line of thumbnails that will scroll to right and left on mouse over and have a large image box that will show the thumbnail mouse-over or mouse-click image.

I would like to know what the best way of accomplishing this would be. I have found some tutorials doing this with JavaScript. Is this the best method or are there better ways?