Added a JavaScript callback function for sortable fields events.
Fixed a bug that array values were inserted in the generateAttributes() method.
Fixed a bug that file select button was not updated when repeat event occurred in the media field type.
Removed redundant lines.
Created a custom jQuery plugin for setting a specified index to id and name attribute.
Made the media field type support sortable fields.
Fixed a bug in the sortable event handling script that did not update the id and name attributes properly.
Made the image field type support sortable fields.
Fixed a bug that a callback script for sortable fields did not updated the attributes property in the media field type.
Tweaked the style of sortable field containers.