// Handle a IE6 compatible hover mechanism for main navigation bar. Once
// running, .over is toggled on mouse over/out.
var Navbar = {
  setup: function() {
    $$("#top > li").each(function(element) {
      element.observe("mouseover", function(event) {
        element.addClassName("over");
      });
      element.observe("mouseout", function(event) {
        element.removeClassName("over");
      });
    });
  }
}

document.observe("dom:loaded", function() {
  Navbar.setup();
});