.darkness {
display:none;
position:fixed;
_position:absolute; /* ie6*/
height:100%;
width:100%;
top:0;
left:0;
background:#000;
border:1px solid #cecece;
z-index:9998;
}

.main{
display:none;
position:fixed;
_position:absolute; /* ie6*/
height:300px;
width:550px;
top: 50%;
left: 50%;
margin: -126px 0 0 -268px;
background: url(../images/popup/popup_caodangnghe.jpg) no-repeat;
z-index:9999;
}

#popup .btn {
	display: block;
	position: absolute; bottom: 26px;
	text-indent: -5000px; overflow: hidden;	
}

#popup .yes {
	height: 30px;
    left: 374px;
    top: 255px;
    width: 168px;
    cursor: pointer;
}

#popup .no {
	background: url("../images/popup/close.png") no-repeat scroll 0 0 transparent;
    height: 16px;
    left: 535px;
    top: 0;
    width: 16px;
	cursor: pointer;
}