Hide/Unhide Charts based on Multiple selections in a List box ?

[#1]

I have a requirement where chart A should be displayed if I have A as a selection in List box. or

Chart B should be displayed if I have B as a selection in List box. And if they select A and B chart B should be selected.

Where i am facing problem when they are selecting more than one

What would be the best way to do it.

[er_mohit]

ok.Let me try this.