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.

You can attach several handlers to the same event, and all of them will be executed.

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