Clear signature but do not unlock previously locked fields

Question

I have designed a form in LiveCycle ES 8.2.1 in which certain fields are locked when a check box is checked. They should remain locked. However, when a first digital signature is inserted and the user clears the signature. previously locked fields get unlocked. These fields must always stay locked.  Does anyone have a solution for this?
Thanks!

Answer 1

I have added the code in Employee Signature field Change event to check the signature status and lock fields if the checkbox is checked . But it is not working.
The requirement is that if the check box is checked, all the fields above that must be locked whether signature is valid or cleared.
This is the first form I have designed in LiveCycle. So I would appreciate any help in this matter.
Thanks,
swat_mpg
1. This is the code
form1.SubformMain.SubformText.SubformSignatures.EmployeeSignature::change - (JavaScript, client)
var digSig = event.target.getField(GetFQSOMExp(this)); 
var status = digSig.signatureValidate(); 
app.alert(status);
switch (status){
case 0:
case 1:
case 2: 
if ( form1.SubformMain.SubformText.chkAppraisalComplete === 1){
xfa.host.messageBox("Signature status is:- "
& status)form1.SubformMain.SubformName.txtfLast.access
= this.rawValue?"readOnly":"open";form1.SubformMain.SubformName.txtfFirst.access
= this.rawValue?"readOnly":"open";form1.SubformMain.SubformName.txtfInitial.access
= this.rawValue?"readOnly":"open"; 
form1.SubformMain.SubformGeneral.txtfDivision.access
= this.rawValue?"readOnly":"open";form1.SubformMain.SubformGeneral.txtfPosition.access
= this.rawValue?"readOnly":"open";form1.SubformMain.SubformGeneral.txtfTimeInPosition.access
= this.rawValue?"readOnly":"open";form1.SubformMain.SubformGeneral.txtfTimeWithSupervisor.access
= this.rawValue?"readOnly":"open";form1.SubformMain.SubformGeneral.txtfSupervisor.access
= this.rawValue?"readOnly":"open";form1.SubformMain.SubformGeneral.DateFrom.access
= this.rawValue?"readOnly":"open";form1.SubformMain.SubformGeneral.DateTo.access
= this.rawValue?"readOnly":"open";
txtfA.access
= this.rawValue?"readOnly":"open";txtfB.access
= this.rawValue?"readOnly":"open";txtfC.access
= this.rawValue?"readOnly":"open";txtfD.access
= this.rawValue?"readOnly":"open";txtfE.access
= this.rawValue?"readOnly":"open"; 
form1.SubformMain.SubformText.chkAppraisalComplete.access
= this.rawValue?"readOnly":"open";}
break; 
2. Image of the Partial form