You cannot nest taglibs within each other. (A taglib cannot be an attribute for another taglib). However, you could retrieve the countrycode value as a script variable, and then use that as the attribute of the <app:decode> taglib. The <rtexprvalue> value for the code attribute of decode must be TRUE for this to work... <% String countryCode = theValue; %> <app:decode codeType="country" code="<%=countryCode%>"> HTH, Pete
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