Code: Alles auswählen.
<htmlb:dropdownListBox id = "dd_tn01" 
                 onSelect = "DoubleCheckId" 
          nameOfKeyColumn = "NAME" 
        nameOfValueColumn = "VALUE" 
                selection = "<%=sel_tn01%>"> 
        <htmlb:listBoxItem key = "EINRI1" value = "PKW" /> 
        <htmlb:listBoxItem key = "EINRI2" value = "Bahn" /> 
        <htmlb:listBoxItem key = "EINRI3" value = "Fahrrad" /> 
</htmlb:dropdownListBox>