Open civicrm activity view in popup

activityPopup.js

cj(function($) {
  $('#crm-container').on('click', '.crm-contact-activity-links a.action-item-first', function(e) {
    var url = $(this).attr('href');
    $('<div class="crm-container" />').dialog({
      title: 'View Activity',
      open: function() {
        $(this).load(url + '&snippet=1');
      }
    });
    e.preventDefault();
  });
});