anchor.diff:                   || delivery.actionString=='takeAssessment'
                    || delivery.actionString=='takeAssessmentViaUrl')
                 && delivery.navigation ne '1' && delivery.previous}" 
  -    onclick="disablePrevious()" onkeypress="disablePrevious()" />
  +    onclick="disablePrevious()" onkeypress="" />
   
     <!-- check for submit for grade permission to determine if button can be displayed -->
     <%-- SUBMIT FOR GRADE FOR LINEAR ACCESS --%>
  
positive.code:                  || delivery.actionString=='takeAssessment' 
                   || delivery.actionString=='takeAssessmentViaUrl')
                && delivery.continue}"
      onclick="disableNext()" onkeypress="disableNext()" />
  
    <%-- SUBMIT FOR GRADE --%>
    <h:commandButton id="submitforGrade" accesskey="#{msg.a_submit}" type="submit" value="#{msg.button_submit_grading}"
  
negative.code:     rendered="#{(delivery.actionString=='previewAssessment'  
                   || delivery.actionString=='takeAssessment')
                && delivery.navigation ne '1'}"  
      onclick="pauseTiming='false'; disableSave();" onkeypress="pauseTiming='false'" 
      disabled="#{delivery.actionString=='previewAssessment'}" />
  
    <%-- SUBMIT FOR GRADE DURING PAU --%>
    <h:commandButton type="submit" value="#{msg.button_submit}"
      action="#{delivery.submitForGrade}"  id="submitForm2" styleClass="active"
      rendered="#{delivery.actionString=='takeAssessmentViaUrl'}"
      onclick="pauseTiming='false'; disableSubmit2();" onkeypress="pauseTiming='false'"/>
  
    <%-- SAVE AND EXIT DURING PAU WITH ANONYMOUS LOGIN--%>
    <h:commandButton accesskey="#{msg.a_quit}" type="submit" value="#{msg.button_quit}"
      action="#{delivery.saveAndExit}" id="quit"
      rendered="#{(delivery.actionString=='takeAssessmentViaUrl' && delivery.anonymousLogin)}"
      onclick="pauseTiming='false'; disableQuit()" onkeypress="pauseTiming='false'"  /> 
  
    <%-- SAVE AND EXIT FOR LINEAR ACCESS --%>
    <h:commandButton accesskey="#{msg.a_saveAndExit}" type="submit" value="#{msg.button_save_x}"
      action="#{delivery.saveAndExit}" id="saveAndExit2"
      rendered="#{delivery.actionString=='takeAssessment'
              && delivery.navigation eq '1' && delivery.continue}"
      onclick="disableSave2();" onkeypress=""
      disabled="#{delivery.actionString=='previewAssessment'}"/>
  
  </p>
  