// javascript function to show as button click then show document
// click one to show then click again off
// call it Toggle
// author :david bui
// version: 1.0 

$(document).ready(function(){
    
    $("button").click(function () {
      $("p").toggle("slow");
      $("ul").toggle("slow");
      $("li").toggle("slow");
    });    

  });