The following events are available in dhtmlxTabbar:

• onTabClick - occurs when the user click on the tab
• onTabClose - occurs when tab closed by close button
• onSelect - occurs when tab selected
• onXLS - occurs when xml loading started
• onXLE - occurs when xml loading finished
• onTabContentLoaded - occurs when content of tab loaded ( for ajax-html mode only )

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

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

        tabbar.attachEvent(evName, evHandler);

Several handlers can be attached to one and the same event, and all of them will be executed. Note: the names of the events are case-sensitive.

There is a simple way of removing an event-handler:

        var id = tabbar.attachEvent(evName, evHandler);
        //...
        tabbar.detachEvent(id); // unique id of the event handler

Parameter of detachEvent is the event's ID , it is the value, which was returned by related attachEvent command.