$(document).ready(function() {
  
  //--- iBook Button ---//
  
  $("p#iBook a").click(function(event) {

    // Prevent default behaviour
    event.preventDefault();
     
    // Add overlay
    $.blockUI({message: $('#iBookContainer'), css: { top: '0', left: ($(window).width() - 569) /2 + 'px', width: '569px' } ,baseZ:950});
      
    // Show video player
    $("#iBookContainer").show();
    
    $('.blockOverlay').attr('title','Click to unblock').click($.unblockUI); 
      
  });
  
  // Close button
  $("#iBookContainer #close").click(function(event) { 
    
    // Prevent default behaviour
    event.preventDefault();

    // Remove overlay
    $.unblockUI();
    
    // Remove video player
    $("#iBookContainer").hide();
  
  });

});