$(function() {

    $( "#dialog-confirm" ).dialog({

      modal: true,

      buttons: {

        "Oui": function() {

          $( this ).dialog( "close" );

        },

        "Non": function() {

          $( this ).dialog( "close" );
        }
      }

    });

  });

</script>

<div id="dialog-confirm" title="Confirmation de paiement">
  <p><span class="ui-icon ui-icon-alert" style="float:left; margin:0 7px 20px 0;"></span>Avez vous effectué le paiement ? </p>
</div>