#page_frame{
      border: 0px;
      padding: 0px;
      margin: 0px;
      width: 810px;
      border: 1px solid #000000;
      }
      
      #menu_home{
      background-image: url(images/nav_menu_home.jpg);
      border-top: 1px solid #ffffff;
      border-bottom: 1px solid #ffffff;
      border-right: 0px;
      background-repeat: no-repeat;      
      margin: 0px;
      padding: 0px;      
      border-left: 0px;
      height: 40px;
      width: 108px;
      float: left;      
      }
      
      #menu_portable{
      background-image: url(images/nav_menu_port.jpg);
      border-top: 1px solid #ffffff;
      border-bottom: 1px solid #ffffff;
      border-left: 1px solid #ffffff;      
      border-right: 0px;
      background-repeat: no-repeat;      
      margin: 0px;
      padding: 0px;      
      height: 40px;
      width: 163px;
      float: left;      
      }

      #menu_fixed{
      background-image: url(images/nav_menu_fixed.jpg);
      border-top: 1px solid #ffffff;
      border-bottom: 1px solid #ffffff;
      border-left: 1px solid #ffffff;      
      border-right: 0px;
      background-repeat: no-repeat;      
      margin: 0px;
      padding: 0px;      
      height: 40px;
      width: 208px;
      float: left;      
      }

      #menu_teacher{
      background-image: url(images/nav_menu_teacher.jpg);
      border-top: 1px solid #ffffff;
      border-bottom: 1px solid #ffffff;
      border-left: 1px solid #ffffff;      
      border-right: 0px;
      background-repeat: no-repeat;      
      margin: 0px;
      padding: 0px;      
      height: 40px;
      width: 183px;
      float: left;       
      }
      
      #menu_research{
      background-image: url(images/nav_menu_research.jpg);
      border-top: 1px solid #ffffff;
      border-bottom: 1px solid #ffffff;
      border-left: 1px solid #ffffff;      
      border-right: 0px;
      background-repeat: no-repeat;      
      margin: 0px;
      padding: 0px;      
      height: 40px;
      width: 144px;
      float: left;       
      }      
      
      
      #title_banner{
      background: #000 url(images/nav_top.jpg) no-repeat top left;
      vertical-align: bottom;
      height: 125px;
      padding: 0px;
      }
      
      #title_banner p{
      position: relative;
      top: 100px;
      color: #fff;
      text-align: right;
      font-family: verdana, arial, sans;
      font-size: 12px;
      display: inline;
      }
      
      .menu_current{
      background-position: bottom left;
      bottom:-1px;
      }
      
      .menu_inactive{
      background-position: top left;
      }