Vijay - Thanks for the solution. It works perfectly.GeneveveX - thanks for the JS cheers.Ameeth

Hi,  I am working on creating a form which has a sub-form that can be repeated as many times as the user wants to. There is an ‘Add’ button which creates an instance of the sub-form on the form, when clicked.On the sub-form I have 5 numeric fields say a1-a5 and 1 field say b1 which is the sum of all...