Re: I need a custom calculation script that takes the target field name and extrapolates the names of the other fields from it, and then uses their values in the calculation.

Thanks, George,

Could you possibly provide an example of what I'd need to put in the Calculate area to call the function?

Also, you mention I need to add this in every total field?  I was already able to set each total field to calculate - without Javascript.  But as hoping Javascript would provide a way to automatically update names of the fields inside each total field.  My forms are 250 lines long, so it would be great to find a way where I could use "Place Multiple Fields" and the field names inside each subsequent Total field would be updated.

Thanks,

Pam