Required library edition:
Required library file: dhtmlxaccordion.js

attaches an event handler to accordion

• original - event's original name;
• catcher - event handler;
• CallObj - object that will call the event.

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-insensitive.

    dhxAcc.attachEvent("onActive", function(item){
        // code here
    });
    // or
    function doOnActive(item){
        // code here
    });
    dhxAcc.attachEvent("onActive", doOnActive);