JSer.modalDialog模态窗口是JSer脚本框架的功能扩展，用于在网页中弹出一个小窗，同时网页的其它内容被此窗口灰色背景遮住，在关闭模态窗口之前，用户不能操作页面上的其它内容。-JSer. ModalDialog mode is the window JSer scr ipt framework of the function expansion, used in web page in a small window popup, at the same time, the other is the web page content window gray background cover, in closed mode before the window, the user can t operate on the rest of the content of the page.