[Seaside] Dynamic Combobox

[Andrius Paulavicius]

Well, Combobox2 rendering should depend on some state which is set in 
Combobox1s callback:

html select
    ...
    callback: [:a | self updateCombobox2State: a];
    onChange: (html updater
        id: combobox2Id;
        callback: [:render | self renderCombobox2: render]).