There are the following available events in dhtmlxMenu:

• onClick - occurs when the user clicks the left mouse button on an enabled, not complex menu item;
• onTouch - occurs when the user first hovers over any menu item by a mouse cursor (is not applicable for the contextual menu);
• onCheckboxClick - occurs when the user clicks any checkbox item;
• onRadioClick - occurs when the user clicks any radio item;
• onXLS - occurs before data loading from XML has started;
• onXLE - occurs after data loading from XML has finished;
• onBeforeContextMenu - occurs before the moment when a contextual menu appears (can be used only for a contextual menu);
• onAfterContextMenu - occurs after the moment when a contextual menu appears (can be used only for a contextual menu).

The user can add any user-defined handler to available events. To do this, he can use attachEvent() method with the following parameters:

• evName - name of the event;
• evHandler - user-defined event handler.

        menu.attachEvent(evName, evHandler);

Note: the names of the events are case-insensitive.