body,td{font-size:12px;font-family:arial,sans-serif;line-height:140%;margin:0}
.s_nav {width:468px;height:24px;}
.s_nav a{width:95px;height:24px;text-indent:-999px;float:left;display:block}

#s1 .s_nav {width:468px;height:24px;background: url(../images/s_b_nav_1.gif) top left no-repeat}
#s2 .s_nav {width:468px;height:24px;background: url(../images/s_b_nav_2.gif) top left no-repeat}
#s3 .s_nav {width:468px;height:24px;background: url(../images/s_b_nav_3.gif) top left no-repeat}
#s4 .s_nav {width:468px;height:24px;background: url(../images/s_b_nav_4.gif) top left no-repeat}
#s5 .s_nav {width:468px;height:24px;background: url(../images/s_b_nav_5.gif) top left no-repeat}