ajaxUpload: function () {

      var url = this.$avatarForm.attr('action'),

          data = new FormData(this.$avatarForm[0]),

          _this = this;

      $.ajax(url, {

        type: 'post',

        data: data,

        dataType: 'json',

        processData: false,

        contentType: false,

        beforeSend: function () {

          _this.submitStart();

        },

        success: function (data) {

          _this.submitDone(data);

        },

        error: function (XMLHttpRequest, textStatus, errorThrown) {

          _this.submitFail(textStatus || errorThrown);

        },

        complete: function () {

          _this.submitEnd();

        }

      });

    },

$(document).ready(function (e) {

    $("#uploadForm").on('submit',(function(e) {

        e.preventDefault();

        $.ajax({

            url: "upload.php",

            type: "POST",

            data:  new FormData(this),

            contentType: false,

            cache: false,

            processData:false,

            success: function(data)

            {

            $("#targetLayer").html(data);

            },

            error: function()

            {

            }

       });

    }));

});