.nav ul {margin:0 auto;display:table; list-style:none;}
.nav li {margin-right:1px;float:left; margin-left:0px; }
.nav li a {display:block; float:left; height:2.5em; line-height:2.5em; color:#333; text-decoration:none; font-weight:bold; text-align:center; padding:0 0 0 12px; cursor:pointer; background:url(/images/pro_seven_0a.gif) no-repeat;}
.nav li a b {float:left; display:block; padding:0 8px 0 0; background:url(/images/pro_seven_0b.gif) no-repeat right top;}
.nav li.hot a {display:block; float:left; height:2.5em; line-height:2.5em; color:#333; text-decoration:none; font-weight:bold; text-align:center; padding:0 0 0 12px; cursor:pointer; background:url(/images/pro_seven_3a.gif) no-repeat;}
.nav li.hot a b {float:left; display:block; padding:0 8px 0 0; background:url(/images/pro_seven_3b.gif) no-repeat right top;}
.nav li.current a {color:#000; background:url(/images/pro_seven_2a.gif) no-repeat;}
.nav li.current a b {background:url(/images/pro_seven_2b.gif) no-repeat right top;}
.nav li a:hover {color:#000; background: url(/images/pro_seven_1a.gif) no-repeat;}
.nav li a:hover b {background:url(/images/pro_seven_1b.gif) no-repeat right top;}
.nav li.hot a:hover {color:#000; background: url(/images/pro_seven_4a.gif) no-repeat;}
.nav li.hot a:hover b {background:url(/images/pro_seven_4b.gif) no-repeat right top;}
.nav li.current a:hover {color:#000; background: url(/images/pro_seven_2a.gif) no-repeat; cursor:default;}
.nav li.current a:hover b {background:url(/images/pro_seven_2b.gif) no-repeat right top;}