jQuery: Testing for arrays

The jQuery Code START
    
    <script type="text/javascript" src="./jquery-1.5.1.js"></script>
    <script src="http://code.jquery.com/jquery-latest.js"></script>
  
    <script type="text/javascript">
      $(document).ready(function() {
          var array = [1, 2, 3, 4, 5, 6, 7, 8];
          if($.isArray(array)) {
              $("div").text("The data is an array");
          } else {
              $("div").text("The data is not an array");
          }
      });
    </script>
    
    <style type="text/CSS">
        <!--
        .code { color: red; }
        .back { background-color: yellow; }
        -->
   </style>
  </head>

  <body>
    <h1>jQuery: Testing for arrays</h1>
    <div></div>