$(document).ready(function()
{
  var li_search = $(".search", "#nav");
  var freeze_current = false;

  li_search.hover(function ()
  {
    if (!freeze_current)
      $(this).addClass("current");
  },function ()
  {
    if (!freeze_current)
      $(this).removeClass("current");
  });

  $("#s_keywords", "#nav").focus(function ()
  { li_search.addClass("current"); freeze_current = true; });

  $("#s_keywords", "#nav").blur(function ()
  { li_search.removeClass("current"); freeze_current = false; });
});