def getResponseValue( field )
      @fieldValue = nil
      if field and @responseXMLdoc
         @fieldValue = @responseXMLdoc.root.elements[ field.to_s ]
         @fieldValue = fieldValue.text if fieldValue and fieldValue.has_text?
      end
      @fieldValue
   end
def getResponseValue( field )
      @fieldValue = nil
      if field and @responseXMLdoc
         @fieldValue = @responseXMLdoc.root.elements[ field.to_s ]
         @fieldValue = fieldValue.text if fieldValue and fieldValue.has_text?
      end
      @fieldValue
   end
Gets the value for a specific field at the top level
 of the XML returned from QuickBase.