Addition of fields when number is selected

Addition of fields when number is selected

Hello,

I am just creating a form and realised it would be really useful if I could have a number field that adds fields relating to the number entered. . . i.e.

Number Interested In: "1"

Dropdown 1:

Checkbox 1:

Multiline 1:

---------------------------------------------

Number Interested in: "3"

Dropdown 1:

Checkbox 1:

Multiline 1:

Dropdown 2:

Checkbox 2:

Multiline 2:

Dropdown 3:

Checkbox 3:

Multiline 3:

---------------------------------------------

Is this do-able?  I've had a quick play in script but wanted to know if anybody has done anything like this, and if it is actually possible?

Best regards,
Simon