How to display different choices on a Catalog Item based on the user's Language?

Add the following code in the advanced reference qualifier.

javascript: var session =gs.getSession();
var userLanguage = session.getLanguage();
if(userLanguage == 'en'){
 "elementSTARTSWITHproduct_type^name=irs_case^language=en^dependent_value="+current.variables.product_family;
}
else if(userLanguage == 'fr'){
 "elementSTARTSWITHproduct_type^name=irs_case^language=fr^dependent_value="+current.variables.product_family;
}
else{
'';
}