#top-menu {
  list-style: none;
  clear: both;
  margin: 5px 0 0 12px;
}
#top-menu li {
  color: #6f5936;
  display: inline;
  float: left;
  position: relative;
  height: 30px;
}
    #top-menu li.about-us a {
      background: url(../images/menu_about_us.gif) no-repeat top left;
      width: 77px;
    }
    #top-menu li.ouds a {
      background: url(../images/menu_ouds.gif) no-repeat top left;
      width: 61px;
    }
    #top-menu li.articles a {
      background: url(../images/menu_articles.gif) no-repeat top left;
      width: 80px;
    }
    #top-menu li.videos a {
      background: url(../images/menu_videos.gif) no-repeat top left;
      width: 72px;
    }
    #top-menu li.gallery a {
      background: url(../images/menu_gallery.gif) no-repeat top left;
      width: 78px;
    }
    #top-menu li.forum a {
      display: none;
      background: url(../images/forum.gif) no-repeat top left;
      width: 65px;
    }
    #top-menu li.contact-us a {
      background: url(../images/menu_contact_us.gif) no-repeat top left;
      width: 103px;
		}
    #top-menu li.about-us a:hover {
			background-position: -77px 0;
    }
    #top-menu li.ouds a:hover {
			background-position: -61px 0;
    }
    #top-menu li.articles a:hover {
			background-position: -80px 0;
    }    
		#top-menu li.videos a:hover {
			background-position: -72px 0;
    }
    #top-menu li.gallery a:hover {
			background-position: -78px 0;
    }
    #top-menu li.forum a:hover {
      display: none;
			background-position: -65px 0;
    }
    #top-menu li.contact-us a:hover {
			background-position: -103px 0;
    }
      #top-menu li a {
        cursor: pointer;
        display: block;
        height: 30px;
        text-decoration: none;
        text-indent: -9000px;
      }