ScriptManager，updatepanel中按钮事件不兼容IE10以后版本

IE10下调试会报javascript错误：Sys.WebForms.PageRequestManagerServerErrorException

ScriptManager控件之后添加

    <script type="text/javascript">
        Sys.WebForms.PageRequestManager.getInstance()._origOnFormActiveElement = Sys.WebForms.PageRequestManager.getInstance()._onFormElementActive;
        Sys.WebForms.PageRequestManager.getInstance()._onFormElementActive = function(element, offsetX, offsetY) {
            if (element.tagName.toUpperCase() === 'INPUT' && element.type === 'image') {
                offsetX = Math.floor(offsetX);
                offsetY = Math.floor(offsetY);
            }
            this._origOnFormActiveElement(element, offsetX, offsetY);
        };
    </script>