I want to validate a calendar field. So I write something like this:

<a4j:outputPanel layout="block" id="referralTab1DOBox">
 <rich:calendar value="#{referral.tab1Data.dob}" popup="true" cellWidth="24px" cellHeight="22px"
 style="width: 200px;" enableManualInput="true" datePattern="MM/dd/yyyy"
 id="referralTab1DOB">
 <a4j:support event="oninputblur" reRender="referralTab1DOBox" ajaxSingle="true"
 bypassUpdates="ture" oncomplete="alert('hi'); MH_init();" />
 <f:validator validatorId="referral.DOB"/>
 </rich:calendar>
 <ifx:message ajax="true" for="referralTab1DOB"/>
</a4j:outputPanel>

I enter a date in the field and press Tab to trigger the oninputblur event, but I don't see the alert message in the oncomplete. Did I do anything wrong? Or is there anyway to do it (all I want is to validate the entered date right after I have it)?