Dynamic Text Box load. help?

hi,

how can i create the following:

I used the UI scrollbar component with a submit button.

then I have a dynamic text box, I want to load whatever option I choose on the UI scrollbar list, hit the submit button and have it displayed in the text box.

how can I do this ? I tried using the webservices connector and something with xml, but I’m stuck.

Please help if you can…