[dancer-users] Template Toolkit Help

I have learned how to display variables in template toolkit with <% varname %>. However, these variables are being named from withing my dancer app and displayed on the template. Is there a way to display variables that a user is entering as they are entering it. So that if I have a menu like form where a user can pick several items and see them each added one by one in a list format before pressing a second submit button that submits his entire lists of entries? It would be a bit like a shopping cart but instead of the items being put in the cart they are displayed right there in the form as they are added. Thanks for any ideas. Richard