jquery addclass

jquery addclass

Hi All,

I have tried various posts from here and google for the answer but to no avail. I need to really simply, change the class on a a list item when it is clicked. It is the nav bar which should have an underline green bar when clicked and hold the class until another is clicked.

The page is here http://www.katiesimmsconsulting.com/richard/index.php/welcome

it is the orange bar with home, about, plan your tour etc.

Any ideas how to accomplish this?