想做个上传图片js/jquery-1.3.2.min.js  /jquery.form.js  singleupload.js用的这些js

//singleupload.js文件

$(function() {
    $("#FileUpload").bind("change", function() {
        //开始提交
        $("#form1").ajaxSubmit({
            beforeSubmit: function(formData, jqForm, options) {
                //隐藏上传按钮
                $(".files").hide();
                //显示LOADING图片
                $(".uploading").show();
            },
            success: function(data, textStatus) {               
                if (data.msg == 1) {
                    $("#txtImgUrl").val(data.msbox);
                } else {
                    alert(data.msbox);
                }
                $(".files").show();
                $(".uploading").hide();
            },
            error: function(data, status, e) {               
                alert("上传失败，错误信息：" + e);
                $(".files").show();
                $(".uploading").hide();
            },
            url: "/Tools/SingleUpload.ashx",
            type: "post",
            dataType: "json",
            timeout: 600000
        });
    });
});

//页面代码

<asp:TextBox runat="server" Css></asp:TextBox>
                <a href="javascript:void(0);" >
                <input type="file" name="FileUpload" /></a>
                <span >正在上传，请稍候...</span>

上传不正确一直报错