You can capture clicks on each part of a LinkBar and then do what you want from there. This is the code I used.
I created an Array with each navigation item I wanted and gave it a identifier. An event listener was set on the LinkBar to watch when items inside are clicked. The triggered event is ItemClickEvent.ITEM_CLICK. The event is passed to a function that will then look at the property called item. item is a reference to the element from the Array it used to create the navigation element. After I know which link was clicked I can load or unload the next item in the display.
The example was based on the post I found here.