#waitDiv {
    background: #ccc;
    border: 1px solid #aaa;
    position: fixed;
    left: 50%;
    top: 50%;
    margin-left: width/2;
    margin-top: height/2;
    _position: absolute; /* 勉强应付 IE6 */
    text-align: center;
    display: none; /* 默认不显示 */
    z-index: 9999999; /*这个数值要足够大，才能够显示在最上层*/
    overflow: hidden;
    margin: 0 auto;
    display:none;
}

#bgModal {
    width: 100%;
    height: 100%;
    position: absolute;
    top: 0;
    left: 0;
    /*弹出窗口后，添加遮罩层，采用此CSS，将该层置于弹出DIV和页面层之间
             z-index控制Z轴的坐标，数值越大，离用户越近 rgba(72, 74, 68, 0.46)
            */
    z-index: 999999;
    background-color: #8f9f8f;
    -moz-opacity: 0.7;
    opacity: .70;
    filter: alpha(opacity = 70);
}