gistfile1.js

var handle_list_link = function() {
  // Get the currently displayed element in the list, if there is one
  var cur = $(this).parents('ul.list:first').children('li.cur');
  var cur_clicked = $(this).is('.cur');

  // If there is a current element, hide it
  if (cur.length != 0) {
    cur.removeClass('cur')
    .children('a.cur').removeClass('cur')
    .siblings('.data:visible').hide('drop', {direction: 'down'});
  }
  // Show the element that was clicked, unless it was the current element
  if (!cur_clicked) {
    $(this).addClass('cur')
    .parents('li:first').addClass('cur')
    .children('.data').fadeIn();
  }
};

$(function() {
  $('ul.list a.trigger').click(handle_list_link);
});