extending the Range Validation idea

<s p a n id="val_hoursInRange"
   controltovalidate="newHours"
   errormessage="Hours Attended must be below 5.5 when child arrived late or left early."
   display="Dynamic"
   type="Double"
   evaluationfunction="RangeValidatorEvaluateIsValid"
   minimumvalue="0"
   {IIF,(document.getElementById.('attLateReason').value <> -1),maximumvalue="5.49",{IIF,(document.getElementById('attEarlyReason').value <> -1),maximumvalue="5.49",maximumvalue="5.50"}}
   style="color:Red;font-size=24px">
  </s p a n>