Change content based on button clicked
<p>This image sums up quite easily what I'm trying to do</p>

<p><img src="http://i.stack.imgur.com/oc5ph.png" alt="enter image description here"></p>

<p>The issue is that I can't for the life of me think of what it would be called so it makes it rather hard to google it :)</p>

<p>It's where you click on one of the tabs and it changes the content below. I'm not even asking for code necessarily just what you'd call this so I can do some searching :)</p>
