Disabled fields not saving to database

We written code (below) to disable all fields so they cannot be changed as part of an approval process.  The code changes all the fields to disabled, but when you save/close the record and reopen, all the fields are editable.  Since there are 50+ fields, is there a way to save all the fields to the database?

//MakeFieldsReadOnly, 
function AllReadOnly_onchange()
{
var RequestApproval = Xrm.Page.getAttribute("synact_requestapproval");
var ApprovalStatus = Xrm.Page.ui.controls.get("synact_approvalstatus");
var ApprovalDate = Xrm.Page.ui.controls.get("synact_approvaldate");
var controls = Xrm.Page.ui.controls.get();
for (var i in controls)
   {
      var control = controls[i];
if (!control.getDisabled() && RequestApproval.getValue() == 1)
      {
      control.setDisabled(true);
      ApprovalStatus.setDisabled(false);
      ApprovalDate.setDisabled(false);

      }
   }
}

Ken Compter