// Rollover Javascript code
    // Modified by Kohan Ikin for DotGarden

    // Function when mouse over main navigation
    function on(string) {
      document[string].src = "/images/nav_" + string + "_on.gif";
    }

    // Function when mouse moves out of main navigation
    function off(string) {
      document[string].src = "/images/nav_" + string + "_off.gif";
    }