title: Jquery if a div is visible on page?
body: <p>I am trying to make a one page website.</p>
  
  <p>As part of the navigation bar i would like it to highlight a certain link <em>if</em> a certain other div is visible on the page.</p>
  
  <p>I have a feeling jquery will do this.</p>
  
  <p><a href="http://peeltheorange.com/" rel="nofollow">Here is an example of what i mean. </a>
  Notice how the navigation links highlight if the section they link to is visible on the page</p>
  
  <p>Can anyone help??</p>