#grnua         {display: block; width:121px; height:46px; background: url("../obaimg/grnua.gif") no-repeat 0 0;}
#grnua:hover   {background-position: 0 -46px;}
#grnua span    {display: none;}

#grncp         {display: block; width:121px; height:46px; background: url("../obaimg/grncp.gif") no-repeat 0 0;}
#grncp:hover   {background-position: 0 -46px;}
#grncp span    {display: none;}

#yelcs         {display: block; width:121px; height:46px; background: url("../obaimg/yelcs.gif") no-repeat 0 0;}
#yelcs:hover   {background-position: 0 -46px;}
#yelcs span    {display: none;}

#yelrs         {display: block; width:121px; height:46px; background: url("../obaimg/yelrs.gif") no-repeat 0 0;}
#yelrs:hover   {background-position: 0 -46px;}
#yelrs span    {display: none;}

#redla         {display: block; width:121px; height:46px; background: url("../obaimg/redla.gif") no-repeat 0 0;}
#redla:hover   {background-position: 0 -46px;}
#redla span    {display: none;}