Make checkbox input 1 or 0 into form in acrobat

Question

I need to be able to make a checkbox in a form in Acrobat return a 0 if checked and a 1 if not check into another text box or form in acrobat.

Answer 1

Checkbox on tick will return NULL or "" and on unchecking it will return "Off" in Acrobat so you can right javascript as

if(this.getField("Checkboxid").value!="Off")
{
    this.getField("textboxid").value=1
}
else
{
   this.getField("textboxid").value=0
}

we can right this javascript on checkbox "Mouse Up" event.