Hello everyone , i'm new to this forum and i'm a foreigner so please be patient with me , i started to developp a webpage and i'm stuck with jquery , what i want to do is to check a radio button if a select is "changed" , it works once , but when i start to use the radio button it freezes , here is the code i need your help !

1.  <INPUT id="emailchoix" name="choix" type="radio" value="email">
   
2. 
        <SELECT id="destinataires" name="contact" size="1">
         <option value="etienne">Étienne</option>
         <option value="michele">Michèle</option>
         <option value="thomas">Thomas</option>
         <option value="filou">Filou</option>
         <option value="mustapha">Mustapha</option>
        </SELECT>
3.    
        <script>
         $( "#destinataires" ).change( function () {
          $( 'input[type=radio][name=choix][value=email]' ).attr( 'checked', true );
         } );
        </script>
4.    
        <INPUT id="livrechoix" type="radio" name="choix" value="livredor"> Livredor