JBoss AS 4.2.3 problem with JavaScript over <span>, <h:outputText>

[enda]

Hello,

I have just updated to JBoss AS 4.2.3

and JS code that used to work does not work any more:

<h:outputText id="#{id}abbreviation"
        onclick="alert('works')"
        onmouseover="showFullLength(this,event,'#{modalId}')" 
        onmouseout="hideFullLength(this,event)" 
       styleClass="enlarge #{styleClass}" value="#{value}">

rendered as

<span id="testabbreviation" class="enlarge">aaaaaaaaaaaa...</span>

I can confirm that it is like that only on JBoss AS 4.2.3 older  JBoss AS 4.2.2 does not have this behavior

Some ideas?
Thanks

[enda]

BTW I tried both J5 and J6 versions

[enda]

it is probably JSF MR2 vs. JSF MR1 ;(

well I will fit now in my code! ;D