Client Interface For Exporting Table Fields

[JabbaTheNut]

I am trying to create an Export Interface for my clients that will allow them to select the fields of a table that they want to export. I am using two list boxes (1. Available Fields list, 2. Selected Fields list). I am using javascript to handle the movement of fields between them. Once the client has placed the desired fields into the Selected Fields list box, the client can then post the request to the server where a delimited text file will be generated according to the specification.

My code works fine. However, I am concerned that my overall approach to an Export Interface is not a good one. Has anyone had to offer the dynamic selection of table fields for export? If so, how did you do it?

Game Over, Man!