text: // For Upload Field Type
  
  jQuery(document).ready(function($){
    var _custom_media = true,
        _orig_send_attachment = wp.media.editor.send.attachment;
  
    $('.upload-button').click(function(e) {
      var send_attachment_bkp = wp.media.editor.send.attachment;
      var button = $(this);
      var id = jQuery(this).prev('input');
      _custom_media = true; 
      wp.media.editor.send.attachment = function(props, attachment){
        var size = props.size;
        var att =attachment.sizes[size];
  
        //props.size
        if ( _custom_media ) {
          $(id).val(att.url);
        } else {
          return _orig_send_attachment.apply( this, [props, attachment] );
        };
      }
  
      wp.media.editor.open(button);
      return false;
    });
  
    $('.add_media').on('click', function(){
      _custom_media = false;
    });
  });
  