Moving Numberic Information To Another Field

Question

I'm trying to move information entered in one field to another field. I can get non-numberic information moved using the following code. This works when both field formats are set to 'none'.
var MN = this.getField("Text2-Years").value;
this.getField("Text2-SpouseYears").value = MN.substr(0,2);
I wish to set both field formats to 'number' and move the two digit number from "Text2-Years" to "Text2-SpouseYears".
I'm using adobe pro 6.
Can anyone help? Thanks in advance.

Answer 1

The "substr()" method works on character strings only not numeric fields, you have to convert the numeric string to a character string.
var MN = this.getField("Text2-Years").valueAsString;
this.getField("Text2-SpouseYears").value = MN.substr(0,2);