.shadediv
{
    background-color: #FFFFFF;
    border: 1px solid #ccc;
    font-size: 12px;
    z-index: 999;
    width: 300px;
    left: 50%;
    top: 50%;
    margin-left: -150px !important; /*FF IE7 该值为本身宽的一半 */
    margin-top: -60px !important; /*FF IE7 该值为本身高的一半*/
    margin-top: 0px;
    position: fixed !important; /* FF IE7*/
    position: absolute; /*IE6*/
    _top: expression(eval(document.compatMode &&
document.compatMode=='CSS1Compat') ?
documentElement.scrollTop + (document.documentElement.clientHeight-this.offsetHeight)/2 :/*IE6*/
document.body.scrollTop + (document.body.clientHeight - this.clientHeight)/2); /*IE5 IE5.5*/

}
.shadediv .shadeclose ,.shadediv .shadnoclose
{
    display: block;
    text-align: right;
    background-color: #F6F6F6;
    border-bottom-style: solid;
    border-bottom-width: 1px;
    border-bottom-color: #ccc;
    padding:5px;
}
.shadediv .shadeMsg{padding:5px;overflow:auto;height:280px;}
.shadebg,.shadeIframe {
background-color: #666; display:none;
width: 100%;
height: 100%;
left:0;
top:0;/*FF IE7*/
filter:alpha(opacity=50);/*IE*/
opacity:0.5;/*FF*/
z-index:1;
position:fixed!important;/*FF IE7*/
position:absolute;/*IE6*/
_top:expression(eval(document.compatMode &&document.compatMode=='CSS1Compat') ?
documentElement.scrollTop + (document.documentElement.clientHeight-this.offsetHeight)/2 :/*IE6*/
document.body.scrollTop + (document.body.clientHeight - this.clientHeight)/2);
}
.shadeIframe {
filter:alpha(opacity=0);/*IE*/
opacity:0;/*FF*/
}