[jboss-user] [JBoss Seam] - how to generate dynamic id of tag?

[kannattaa]

i have a list of commodities and want to generate id of <a:outputPanel> that corresponds to commodity.id . then i am going to rerender particular <a:outputPanel> with ajax, but not all of them.
but #{currentCommodity.id} doesn't occur in result id :
source:
    <a:repeat value="#{listCommodities.getCommodities()}" var="currentCommodity">
  |         <a:outputPanel id="#{currentCommodity.id}spinbox">
  |             #{currentCommodity.id}            
  |         </a:outputPanel>
  |     </a:repeat> 
result html:
<span id="j_id2:0:spinbox">450</span>
  | <span id="j_id2:1:spinbox">451</span>
  | <span id="j_id2:2:spinbox">550</span>
  | <span id="j_id2:3:spinbox">601</span>
  | <span id="j_id2:4:spinbox">500</span>

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