/**
* if ordered, steps are show on left and must be completed sequentially, otherwise steps are shown on top and can be done in any order
* @param {boolean} ordered If true (default assistant behavior) then a navigation order thru the steps/pages will be imposed on the user. Otherwise the user
* will be allowed to navigate across steps/pages in any order they choose.
* @return {void}
*
* @method
* @memberOf nlobjAssistant
*
* @since 2009.2
*/