.join_rate_default{width:18px;height:17px;background:url(../images/icon_star_06.png) -41px 0px no-repeat;}
.join_rate_half{width:18px;height:17px;background:url(../images/icon_star_06.png) -20px 0px no-repeat;}
 .join_rate_full{width:18px;height:17px;background:url(../images/icon_star_06.png) no-repeat;}
 
.join_rate_group{float:left;width:20px;height:17px;}
.join_rate_left_red{float:left;width:9px;height:17px;background:url(../images/icon_star_06.png) no-repeat;}
.join_rate_right_red{float:left;width:9px;height:17px;background:url(../images/icon_star_06.png)  -10px 0px no-repeat;}

.join_rate_left_gray{float:left;width:9px;height:17px;background:url(../images/icon_star_06.png) -42px 0px no-repeat;}
.join_rate_right_gray{float:left;width:9px;height:17px;background:url(../images/icon_star_06.png) -50px 0px no-repeat;}