.jc-open-message,
.jc-open-message-a,
.jc-open-message-b { 
    background: url('images/jc-open-message.png') no-repeat left top;
    display: inline-block;
    height: 27px;
    width: 100px;
    cursor: pointer;
    text-indent:-9999px;
    overflow:hidden;
    vertical-align:middle;
}
.jc-open-message-b { 
    background: url('images/jc-open-message.png') no-repeat left -29px;
}
.jc-open-message:hover,
.jc-open-message-a:hover {
    background: url('images/jc-open-message.png') no-repeat left -57px;
}
.jc-open-message-b:hover { 
    background: url('images/jc-open-message.png') no-repeat left -86px;
}
.jc-open-img{ 
    background: url('images/jc-open1.png') no-repeat;
    display: inline-block;
    margin: 0 5px;
    width:20px;
    height:17px;
    cursor: pointer;
    vertical-align:middle;
}