The Employee can be either hourly calculated or based on a salary so I
wnat  two field to appear for hourly eg. A rate and hours textfield and
for salary I just want a textfield for them to input the salary.
To create an efficient interface I only want the hourly fields to
appear when the user clicks on hourly from the combobox type of
employee. Would these be done as separate interfaces and called when
the user chooses a type from the combo box.

I'm new to working gui's so maybe i'm making this to complicated for
myself.  any suggestions?
Ian