i use richfaces 3.3.3

i got a suggestbox with some identica list entries for selection, but with different attributes. so i must know which elment of the list was choosen.

i tried this

<h:inputText id="suggest_input" />

   <rich:suggestionbox for="suggest_input" minChars="1"

       fetchValue="" nothingLabel="no entry found"

         suggestionAction="#{myMB.suggestData}" var="suggest">

         <h:column>

            <h:outputText value="#{suggest.propertyA}" />

         </h:column>

         <h:column>

            <h:outputText value="#{suggest.propertyB}" />

         </h:column>

            <a4j:support ajaxSingle="true" event="onselect"

                action="#{myMB.refreshData}" reRender="data_id">

            <a4j:âctionParam  name="paramkey" value="#{suggest.key}"

                    target="#{myMB.key}" />

         </a4j:support>

  </rich:suggestionbox>

but the actionparam "paramkey" alwasy is null. although "suggest.key" never is null.

any ideas what is wrong?