How do I change the background image for a single tab on the navigation bar

Question

I'm creating a movie website for TDKR and for the navigation bar, I intend to have a different character for each tab. However, I'm having trouble putting a single image each separate tab. Instead one image appears on each of the tabs. Here's an example of the source and CSS.
<td width="200"><ul id="navigation"><br />
      <li><a href="../pages/index.html">Home</a></li><br />
      <li><a href="../pages/cast.html">Cast</a></li><br />
      <li><a href="../pages/pictures.html">Pictures</a></li><br />
      <li><a href="../pages/soundtrack.html">Music</a></li><br />
      <li><a href="../pages/interview.html">Interviews</a></li><br />
      <li><a href="../pages/links.html">Links</a></li><br />
    </ul>
    </td>
#navigation {
          list-style-type: none;
          padding: 0px;
          margin: 0px;
#navigation li {
          margin: 0px;
          padding: 0px;
          list-style-type: none
#navigation li a:link, #navigation li a:visited {
          display: block;
          width: 200px;
          height: 100px;
          text-decoration: none;
          text-align: center;
          line-height: 100px;
          font-family: "Trebuchet MS", Arial, Helvetica, sans-serif;
          font-weight: bold;
          -webkit-transition: 1000ms ease;
          -moz-transition: 1000ms ease;
          -ms-transition: 1000ms ease;
          -o-transition: 1000ms ease;
          transition: 1000ms ease;
          color: #648AAE;
          background-repeat: no-repeat;
          background-image: url(../Images/gifs/Batman-still-2.gif);
          background-position: center bottom;
          text-transform: uppercase;
          letter-spacing: 0.79em;
          border-radius: 5px;
#navigation li a:focus, #navigation li a:hover, #navigation li a:active {
          color: #000000;
          background-image: url(../Images/gifs/Batman-animation-2.gif);
          background-repeat: no-repeat;
          background-position: center bottom;
          background-color: #454545;
          border-radius: 25px;
So, how do I put a single image on each tab (home, cast, pictures, etc). Thank you for your help in advance.

Answer 1

Assign a class to the item and use CSS to apply an image as in
<li><a href="../pages/index.html" class="home;">Home</a></li><br />
<li><a href="../pages/cast.html">Cast</a></li><br />
<li><a href="../pages/pictures.html">Pictures</a></li><br />
<li><a href="../pages/soundtrack.html">Music</a></li><br />
<li><a href="../pages/interview.html">Interviews</a></li><br />
<li><a href="../pages/links.html">Links</a></li><br />
and the CSS
#navigation li a:link.home, #navigation li a:visited.home {
     background-image: url(../Images/gifs/Batman-still-2.gif);