/************* button*****************/
.btUpV, .btDownV, .btUpH, .btDownH{
    display: block;
    background-repeat: no-repeat;
	cursor: pointer;
}
.btUpV, .btDownV{
    width:61px;
    height : 21px;
    margin:auto;
}
.btUpH, .btDownH{
    width: 21px;
    height : 40px;
	margin-top: 35px;
}
.btUpH{
    float : left;
    background-image: url(../images/leftInActive.png);
}
.btUpHActive{
    background-image: url(../images/leftActive.png);
}
.btDownH{
    float : right;
    background-image: url(../images/rightInActive.png);
}
.btDownHActive{
    background-image: url(../images/rightActive.png);
}