asp.net webform 增加 loading

<script type="text/javascript">
        $(function () {
            $("form").submit(function () {
                $.jBox.tip("正在执行，请稍后...", 'loading');
            });

            $("form").each(function () {
                this.submitx = this.submit;
                this.submit = function () {
                    $.jBox.tip("正在执行，请稍后...", 'loading');
                    this.submitx();
                };
            });
        });
    </script>

 为了配合客户端验证，最新改进型：

<script type="text/javascript">
        window.isPageValid = null;
        $(function () {
            $("form").submit(function (e) {
                if (window.isPageValid != null && !window.isPageValid) {
                    window.isPageValid = null;
                    return false;
                }

                window.isPageValid = null;
                $.jBox.tip("正在执行，请稍后...", 'loading');
                return true;
            });

            $("form").each(function () {
                this.submitx = this.submit;
                this.submit = function () {
                    if (window.isPageValid != null && !window.isPageValid) {
                        window.isPageValid = null;
                        return false;
                    }

                    window.isPageValid = null;
                    $.jBox.tip("正在执行，请稍后...", 'loading');
                    this.submitx();
                };
            });

            window.RealPage_ClientValidate = window.Page_ClientValidate;
            window.Page_ClientValidate = function (validateGroup) {
                var result = window.RealPage_ClientValidate(validateGroup);
                window.isPageValid = result;
                return result;
            }
        });
    </script>