Lightbox - Cascading select


I need to implement cascading selects in the LightBox panel.
My select are both popolated with the OptionsConnector correctly.
I’ve tried using the “onchange” function but I need to perform a SQL filter from one select to the other.
Is it possible to implement this scenario?


It possible to use a dhtmlxCombo instead of select, combo have an API for data reloading, which can be used in your case