$(document).ready(function()

    {

    // First we hide all exhibitis 

    $("#menu ul li.section-title").nextAll().hide();

    // then the active exhibit is showed

    $("#menu ul").each(function()

    {

    $(this).find("li.active").prevAll().nextAll().show();

   });

// This is the toggle function

   // first it hides all sections

   $("#menu ul li.section-title").click(function()

   {

  $("#menu ul li.section-title").nextAll().hide();

   $(this).nextAll().slideToggle("fast");

  });

   });