var $j = jQuery.noConflict();

$j(document).ready(function() {
  $j('div.accordion> div').hide(); 
  $j('div.accordion> div:first').show();
  $j('div.accordion> h2').click(function() {
  
  $j('div.accordion> div').slideUp('medium');
  $j(this).next().slideToggle('medium');
  
  });
});