title: Change iPhone UISlider bar image
body: <p>I'm using a <code>UISlider</code> in my app but I'd like to use a custom "look-and-feel" for it.  I have changed the thumb to my own image but is there a way to change the bar also?  I have a bar image I would like to use but can't see how to do this.</p>
  
  <p>I have found how to change the max and min image but not the bar itself.</p>