jQuery(document).ready(function() {

	jQuery('#secondary-images a').click(function() {
		jQuery(this).addClass('selected');
	    jQuery.ajax({
	        url: '/wp-admin/admin-ajax.php',
			type: 'POST',
			dataType: 'JSON',
			data: 'action=get_attachment_link&size=large&id=' + jQuery(this).attr('id'),
			success: function(data) {
	    		jQuery('#primary-image').html(data);
			}
		});
		return false;
	});
});