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   | <form method="post"  id="form_1" action="javascript:;">   <input type="submit" value="add" name="sub"/>   <input type="submit" value="envoi" name="sub"/> </form>
   | 
 
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   | $(function() {   $('input[name=sub]').click(function(){     var _data= $('#form_1').serialize() + '&sub=' + $(this).val();     $.ajax({       type: 'POST',       url: "php.php?",       data:_data,       success: function(html){          $('div#1').html(html);       }     });     return false;   }); });
  | 
 
 参考信息: http://stackoverflow.com/questions/3275640/jquery-submit-ajax-form-with-2-submit-buttons