Need to exclude a value from a calculation if a checkbox is checked.

[robadob1212]

I'm creating a form in Adobe Acrobat 9 Pro.

The form has 9 text fields. In the first 8 fields, the user manually enters a dollar amount. The ninth field has a calculation that auto-populates the sum of the preceding 8 fields. Beside each of the first 8 fields is a checkbox. If the box is checked then the value in the text field is to be excluded from the calculation in box 9.

How do I exclude the value in the text box from the total calculation in the 9th text box?

Example: Each of the first 8 boxes = $0, except for Box 2 and Box 5. Box 2 = $15 and Box 5 = $37. The calculation in Box 9 = $52.

However, if thec check box next to Box 2 is checked then Box 9 should = $37.

How should the script be written and where is the script written? In the checkbox, each 8 preceding text boxes or in Box 9?

I'm new at this and need some help.

Thank you,

Rob

[acoder]

Assuming the JavaScript is the same, check the checked property:

if (!chkbox.checked) {
// include value in total
}

If the syntax isn't the same, you'll need to check the Acrobat JavaScript reference.