Required library edition:
Required library file: dhtmlxcontainer.js

attaches dhtmlxMenu to the cell, returns menu object

Attaching to the layout's cell:

    var dhxMenu = dhxLayout.cells("a").attachMenu(); // returns menu object

Attaching to the accordion's cell:

    var dhxMenu = dhxAcc.cells(id).attachMenu(); // returns menu object

Attaching to a window:

    var dhxMenu = dhxWins.window(id).attachMenu();

Attaching to a tab:

    var dhxMenu = dhxTabbar.cells(tabId).attachMenu();