title: Make image's z-index change on click
body: <p>I've tried a lot of things, but nothing is working.</p>
  
  <p>When I click on an mage, I want it's z-index to be "9999". When I click to show another image, I want the previous image's z-index to go back to "0". </p>
  
  <p>So basically, I only want one image to show at a time - I want a specific function to run for each image. </p>
  
  <p><a href="http://jsfiddle.net/WarrenBee/a78R7/" rel="nofollow">http://jsfiddle.net/WarrenBee/a78R7/</a></p>
  
  <p>PLEASE help me!</p>