I'm trying to copy text from an AcroField named "Date Signed" to the field "In_Person_Date" if a checkbox is ticked. I tried
function sync()
{
var n1 = document.getElementById('Date Signed');
var n2 = document.getElementById('In_Person_Date');
Date Signed.value = In_Person_Date.value;
}
</script>
<input type="text" name="Date Signed" id="Date Signed" onkeyup="sync()">
<input type="text" name="In_Person_Date" id="In_Person_Date"/>
Which I got from another answer, but it didn't work.