Required library edition:
Required library file: dhtmlxlayout.js / dhtmlxaccordion.js

attaches dhtmlxTabbar to a cell, returns a tabbar object

Attaching to the layout's cell:

var dhxTabbar = dhxLayout.cells("a").attachTabbar(); // returns tabbar object

Attaching to the accordion's cell:

var dhxTabbar = dhxAcc.cells(id).attachTabbar(); // returns tabbar object