What about using custom control instead panelFeedBack or try
<!— two data sources pointing to the same form —>
<xp:this.data>
<!— only requestParamPrefix and var properties differ —>
<xp:dominoDocument var=”document1” formName=”MainTopic”
computeWithForm=”both” action=”editDocument”
requestParamPrefix=”first”>
</xp:dominoDocument>
</xp:this.data>
<xp:this.data>
<xp:dominoDocument var=”document2” formName=”MainTopic”
computeWithForm=”both” action=”editDocument”
requestParamPrefix=”second”>
</xp:dominoDocument>
</xp:this.data>
http://localhost/Chapter7.nsf/myTopicX2.xsp?firstdocumentId=9F2&se
conddocumentId=96a