code: function setupFileElement( editor, fileInput, filebrowser ) {
  		var params = filebrowser.params || {};
  		params.CKEditor = editor.name;
  		params.CKEditorFuncNum = editor._.filebrowserFn;
  		if ( !params.langCode )
  			params.langCode = editor.langCode;
  
  		fileInput.action = addQueryString( filebrowser.url, params );
  		fileInput.filebrowser = filebrowser;
  	}
docs: Setups the file element.  @param {CKEDITOR.ui.dialog.file} fileInput The file element used during file upload. @param {Object} filebrowser Object containing filebrowser settings assigned to the fileButton associated with this file element.