updateMenuEventRegistration = function(oThis, oNewMenu){
		var oMenu = oThis.getMenu();
		if (oMenu) {
			oMenu.detachItemSelect(oThis._fItemSelectHandler);
		}
		oThis._fItemSelectHandler = onItemSelected.bind(oThis);
		if (oNewMenu) {
			oNewMenu.attachItemSelect(oThis._fItemSelectHandler);
		}
	}
Destroys the menu in the aggregation
named <code>menu</code>.
@return {this} <code>this</code> to allow method chaining
@public