jQuery带遮罩层弹窗实现（附源码）

1、CSS样式

     <style type="text/css">
         body { font:11px/1.6em Microsoft Yahei; background:#fff; line-height:1.6em; outline:none;}
         html,body,div,ul,ol,li,p,iframe,h1,h2,dl,dt,dd { margin:; padding:;}
         .mask { width:100%; height:100%; background:rgba(0,0,0,0.6); display:none; position:fixed; _position:absolute; top:; left:; z-index:;}
         .dialog { min-height:120px; background:#fff; display:none; position:fixed; top:8%; left:50%; z-index:; box-shadow:3px 3px 5px #000;}
         .dialog a.close { display:block; width:22px; height:22px; background:url(images/close.png) center no-repeat #fff; text-indent:-9999em;}
         .dialog a.close { position:absolute; top:; right:; z-index:;}
         .dialog.loading { background:url(images/loading.gif) center no-repeat #fff;}
         .dialog-content { padding:22px 10px 10px 10px;}
     </style>

2、HTML代码

     <div class="mask"></div>
     <div class="dialog">
         <a href="javascript:void(0)" class="close" title="关闭">关闭</a>
         <div class="dialog-content"></div>
     </div>

3、Javascript

     <script type="text/javascript">
         $(function () {
             $('.dialog').find('a.close').bind("click", function () {
                 Dialog.close();
             });
         });

         var Dialog = {
             mask: $('.mask'),
             dialog: $('.dialog'),
             content: $('.dialog-content'),
             open: function (width, height, appendHtml) {
                 Dialog.mask.fadeIn(500);
                 Dialog.dialog.css({ width: width, height: (height + 22), marginLeft: -(parseInt(width) / 2) }).addClass('loading').fadeIn(500, function () {
                     Dialog.dialog.removeClass('loading');
                     Dialog.content.append(appendHtml);
                 });
             },
             close: function () {
                 Dialog.mask.fadeOut(500);
                 Dialog.dialog.fadeOut(500, function () {
                     Dialog.content.empty();
                 });
             }
         }
     </script>

4、预览效果

下载地址：http://files.cnblogs.com/wyguo/jquery_dialog.zip