InfoPath Dev

Hi, I am using InfoPath 2003 and have a situation to which I need some help.  I am trying to set up a form and one of the fields is a date calculation.

 I have a DatePicker control that displays the current date.

 I have 2 two other fields.

 1 is a Subject field that is a dropdown that uses a data connection to a SharePoint list that looks like the following:

Subject     Days
Samples     14
Standards    7
Labels         7
Projects      356

I would like to create another field called EstimatedCompletionDate which depending on which Subject is selected, will add the number of days to the DateInitiated field. 

Does anyone have a solution for how to do this?  In desparate need of some help!

Thank you!

Hi, I think you need to write some code to do that on InfoPath 2003. The add Day function is include since Infopath 2007.