$("a[class=note]").click(function( evt ){
                   var note = $(this).attr("value");
                   var preid = $(this).attr("id");
                   var dataFromServer = null;
                   $.ajax({
                       type: 'GET',
                       url: 'style/ajax.php',
                       data: 'do=note&value=' + note + '&preid=' + preid,
                       success: function(data)
                       {
                           dataFromServer = data;
                          // alert(data);
                       }
                   });

                   alert(dataFromServer);
                });