// JavaScript Document

	 google.load("jquery", "1.2");
  google.load("jqueryui", "1.5");
	 google.setOnLoadCallback(function()
	{
	  //hide the all of the element with class sub
	  $(".sub").hide();
	  //toggle the componenet with class sub
	  $(".collapse").click(function()
	  {
		$(this).next(".sub").slideToggle(600);
		$(this).toggleClass("expanded");
	  });
	});