Question

Given this website: link text

How would one find an element and remove any class=selected and add it to the correct link?
That way when history, models, and the like links will look become selected when clicked upon.

Answer 1

The following code should do the trick in your case..

// when clicking a link inside the sub-navigation list
$('#sub-navigation a').click(function(){ 
    // first remove the selected class from the active one
    $('#sub-navigation li.selected').removeClass('selected');
    // then find the parent li of the clicked element and add the selected class
    $(this).parents('li').addClass('selected');
});

(it is tested on your example page and it works as expected..)