How to call js on complete every ajax request ?

[marioosh.net]

I have rich:messages in container, that i need to show if maximumSeverity != null.

In a couple of commandLinks i have something like that :

<a4j:commandLink .... oncomplete="if (#{facesContext.maximumSeverity!=null}) {jQuery('#messages').show();}"

<div id="messages">
 <!-- <a4j:outputPanel ajaxRendered="true"> -->
 <rich:messages globalOnly="true" infoClass="messages_info" errorClass="messages_error" warnClass="messages_warn" fatalClass="messages_fatal" />
<!-- </a4j:outputPanel> -->
 </div>

How to make call my oncomplete js code after every request completed GLOBALLY ?

I know that <a4j:outputPanel ajaxRendered="true"> can be rerendered after requests... but i think that i can't put js inside <a4j:outputPanel... >

[elf]

try to use status component

[marioosh.net]

I discovered that i CAN put js inside a4j:outputPanel... but facesContext.maximumSeverity doesn't work

<a4j:outputPanel ajaxRendered="true">
 <z:time/>
 <f:verbatim>
 <script type="text/javascript">
 if (#{facesContext.maximumSeverity!=null}) {$info2('#messages');}
 </script>     
 </f:verbatim>          
 </a4j:outputPanel>

[elf]

try to use   

 if (#{javascript:facesContext.  ...

[marioosh.net]

Thanks for answer, but something is wrong, because i see that facesContext.maximumSeverity is not null, but in onstop it doesn't work for me...

<a4j:outputPanel ajaxRendered="true">#{facesContext.maximumSeverity}</a4j:outputPanel>
<a4j:status onstart="" onstop="alert('that's ok'); if (#{facesContext.maximumSeverity!=null}) {alert('never showed')}"/> 

if (#{javascript:facesContext.maximumSeverity!=null}) generate ParseException... :/

[marioosh.net]

Something like that works for me!

<a4j:outputPanel ajaxRendered="true" style="display: none;"><div id="severity">#{facesContext.maximumSeverity}</div></a4j:outputPanel>
<a4j:status onstop="if(jQuery('#severity').text() != ''){alert('WORKS NOW');}"/>

Conclusion: in onstop attribute of a4j:status #{facesContext.maximumSeverity} can't be checked directly ??? Strange, maybe a bug...