.menu5 {padding:2px 0 0 0; margin:0; list-style:none; height:40px; position:relative; background:transparent url(http://www.sigmaplot.com/products/sigmaplot/0c.gif) repeat-x left bottom; font-size:11px;}
.menu5 li {float:left; height:40px; margin-right:1px;}
.menu5 li a {display:block; float:left; height:40px; line-height:35px; color:#333; text-decoration:none; font-family:arial, verdana, sans-serif; font-weight:bold; text-align:center; padding:0 0 0 4px; cursor:pointer; background:url(http://www.sigmaplot.com/products/sigmaplot/0a.gif) no-repeat;}
.menu5 li a b {float:left; display:block; padding:0 11px 5px 9px; background:url(http://www.sigmaplot.com/products/sigmaplot/0b.gif) no-repeat right top;}
.menu5 li.current a {color:#000; background:url(http://www.sigmaplot.com/products/sigmaplot/2a.gif) no-repeat;}
.menu5 li.current a b {background:url(http://www.sigmaplot.com/products/sigmaplot/2b.gif) no-repeat right top;}
.menu5 li a:hover {color:#000; background: url(http://www.sigmaplot.com/products/sigmaplot/1a.gif) no-repeat;}
.menu5 li a:hover b {background:url(http://www.sigmaplot.com/products/sigmaplot/1b.gif) no-repeat right top;}
.menu5 li.current a:hover {color:#000; background: url(http://www.sigmaplot.com/products/sigmaplot/2a.gif) no-repeat; cursor:default;}
.menu5 li.current a:hover b {background:url(http://www.sigmaplot.com/products/sigmaplot/2b.gif) no-repeat right top;}