Demo of Accordion all option Key value pairs using JQuery UI

Header 1 ( panel No. 0 )
Text about Header 1
Header 2 ( panel No. 1 )
Text about Header 2
Header 3 ( panel No. 2 )
Text header 3
Header 4 ( panel No. 3 )
Text about Header 4.


Tutorial on Accordion Animation DEMO: Accordion event activate

JQuery

<html>
<head>
<title></title>
<script src='https://code.jquery.com/jquery-3.1.1.min.js'></script>
<script src='https://code.jquery.com/ui/1.12.1/jquery-ui.min.js'></script>
<link href='https://code.jquery.com/ui/1.12.1/themes/cupertino/jquery-ui.css' rel='stylesheet'>
</head>
<body>
<div id='accordion' class='accordion'>
 <div class='header'>Header 1 ( panel No. 0 )</div>
  <div class='content'>
    Text about Header 1  
  </div>
 <div class='header'>Header 2 ( panel No. 1 )</div>
  <div class='content'>
    Text about Header 2    
  </div>
<div class='header'>Header 3 ( panel No. 2 )</div> 
  <div class='content'>
    Text header 3
  </div>
<div class='header'>Header 4 ( panel No. 3 )</div>
  <div class='content'>
    Text about Header 4.
   </div>
</div>
<div id=d1></div>
<script>
$(document).ready(function() {
//////////////////////////
$( '#accordion' ).accordion({
animate: 200
});

var options = $( ".accordion" ).accordion( "option" );

$.each( options, function( key, value ) {
 $('#d1').append( key + ": " + value + "<br>");
});

})
</script>
</body>
</html>