.bg {
/*
	background-image: url(../image/bg.jpg);
	background-repeat: repeat-y;
	background-position: center top;
*/
}
.headbg {
	background-image: url(../image/head_bg.jpg);
}
.loginbg {
	background-image: url(../image/login_bg.jpg);
	background-position: center center;
	background-repeat: no-repeat;

}
.botbg {
	background-image: url(../image/bot_image.jpg);
}
.attentionbg {
	background-image: url(../image/attention_bg.jpg);
	background-repeat:no-repeat;
}
.dlbg {
	background-image: url(../image/dl_bg.jpg);
}
.dlbg2 {
	background-image: url(../image/dl_bg2.jpg);
}
.conceptbg {
	background-image: url(../image/concept_bg.jpg);
	background-repeat: no-repeat;
}

.mainlayer {
	top: 0px;
	left: 112px;
	position: absolute;
	z-index: 1;	
}