$(document).ready(function() {

// Set Background of First Sliding Box
   $('.slidecontent:first').css('display','none');
// $('div em:first').css('visibility','hidden');
   

// Sliding
  $('#content:eq(0)> .slidecontent:gt(0)').hide();
  $('#content:eq(0)> a.expandcontent').click(function() {
  var currentId = $(this).attr('id');
  $('.clickbox').css('visibility','visible');
  $('#click'+currentId).css('visibility','hidden');
  $(this).next('div:hidden').slideDown('fast').siblings('div:visible').slideUp('fast');
});

});