Signature validation using signatureValidate

Question

Hi,
We have designed a form where we use signatureValidate to check the validity of a signature. It has been working fine until recently where we all of a sudden get this error when calling the function:
          TypeError: oField.signatureValidate is not a function
This is the code that we use when validating the signature:
          function validateSignatur(){
               var iResultat;
               var sBesked = "";
               var felt1 = form1.side1.sub_Underskrift.fld_Underskrift.somExpression;
               var oField = event.target.getField(felt1);
               var iStatus = oField.signatureValidate();
               var oSigInfo = oField.signatureInfo();
               sBesked = oSigInfo.statusText;
               iResultat = iStatus;
               return iResultat;
As I said earlier this has worked fine for some time now, but recently is has stopped working. Is the signatureValidate function no longer supported or what could the problem be??
/Caspar

Answer 1

I think you need to make felt1 a string. I've tried using somExpression as the argument to getField as well and it just doesn't work. Try something like this:
var felt1 = "form1[0].side1[0].sub_Underskrift[0].fld_Underskrift[0]";
Hope this helps.
Christopher Allen