Radio button

[elyes sallem]

Hello,
i display a liste of row that i get back from a database
among the attribute, there one that i wanna display in a radio button
if it is checked , i wanna save one value "PERM", else, i.e unchecked, an
other value "revers"

    <nested:iterate indexId="index" id="ajustContrat"
                            property="ajustContrat">
-- other attributes

<td colspan="1"
                                        style="width: 223px; height: 23px;
text-align: center; background-color: <%= couleur %>
inactivecaptiontext;"><nested:radio
                                        property="CAjustTypeAjust"
value="PERM" /> &nbsp;<span
                                        style="font-size: 8pt"> </span></td>
in this case , if i check it one time, i can't uncheck it after

any one has an idea how develop this?

Regards
Elyes.