#menu_top{width:900px; margin:0 auto; height:50px; background:black;}
#menu_top h2{margin:0; padding:0; float:left;}
#menu_top h2 a{display:block; font-family:"Times New Roman", Times, serif; font-size:17px; color:#cbcbcb; text-decoration:none; font-weight:normal; margin:10px 13px; padding-bottom:18px; padding-top:2px;}
#menu_top h2 a:hover{color:#fff;}
#menu_top h2 a.a{background:url(../images/menu/a.gif) left 18px no-repeat;}
#menu_top h2 a.a:hover{background:url(../images/menu/a.gif) left bottom no-repeat; padding-top:0;}
/*#menu_top h2 a.b{background:url(../images/menu/b.gif) left 18px no-repeat;}
#menu_top h2 a.b:hover{background:url(../images/menu/b.gif) left bottom no-repeat; padding-top:0;}*/
#menu_top h2 a.c{background:url(../images/menu/c.gif) left 18px no-repeat;}
#menu_top h2 a.c:hover{background:url(../images/menu/c.gif) left bottom no-repeat; padding-top:0;}
#menu_top h2 a.d{background:url(../images/menu/d.gif) left 18px no-repeat;}
#menu_top h2 a.d:hover{background:url(../images/menu/d.gif) left bottom no-repeat; padding-top:0;}
#menu_top h2 a.e{background:url(../images/menu/e.gif) left 18px no-repeat;}
#menu_top h2 a.e:hover{background:url(../images/menu/e.gif) left bottom no-repeat; padding-top:0;}
#menu_top h2 a.f{background:url(../images/menu/f.gif) left 18px no-repeat;}
#menu_top h2 a.f:hover{background:url(../images/menu/f.gif) left bottom no-repeat; padding-top:0;}
#menu_top h2 a.z{background:url(../images/menu/z.gif) left 18px no-repeat;}
#menu_top h2 a.z:hover{background:url(../images/menu/z.gif) left bottom no-repeat; padding-top:0;}