Edit "Warning: Javascript Window" Message
Hi
Newbie here - I have changed the formatting of a field to Arbitrary Mask for numbers to be displayed in a certain way. Eg: ABN Numbers to be completed on an application form in the following sequence:
99 999 999 999
Is there any way to change the Warning message from the Javascript Pop-up?? (see below)

I basically just need it to say: "ABN must be 11 digits" > as i have clients filling out this form - the pop up error needs to be very simple and explanatory.
If there is no way to do this due to the Arbitrary Mask formatting - is there any other way I can do this without losing the number sequence formatting of : 99 999 999 999??
Please help?
