Passing Listbox value to msgbox

[Frank123]

I'm getting kind of confused with the whole clientside and serverside scripting. In the past I only used server side so now when I wanted to implement a msgbox things aren't going my way.
What I want to do is when a button is clicked on a ASP page, I want a message box to pop up with whatever is in the listbox at that time. I could do it with serverside scripting like this: listbox3.gettext()

Any ideas? Thanks!
And by the way, can you call a serverside function from a client-side function?

 

[Frank123]

I ment subprocedure, not function in my last question..

 

[alistairpaul]

to do your messagebox, you need to write some client-side vbscript that will be output to the client from your ASP script, instead of processed on the server-side.

 

[Frank123]

Thanks alistairpaul, my msgbox is client-side and working it's just that I want to call a server-side subprocedure from a client-side subprocedure. I was hoping there would be a easy way of doing this...