/**
 * unfold menu structure up to element with class 'currentContent',
 * there should always be only one such element.
 */
function unfoldCurrent() {
	el = getDeepChildByClass(document.getElementById('nav_menu'),'currentContent', 1);
	while (el!=null) {
		if (isClass(el,'collapsed')) {	
			switchMenu(el.id);
		}
		if (!isClass(el,'currentContent')) {	
			appendClass(el,'currentContent');
		}
		el = getParent(el.parentNode,'li');
	}
}

commands[commandIter++] = "unfoldCurrent()";