var currentpage = 0;

    function setCurrentPageId(id) 
    {
        
        currentpage = id;
        rollOverMenuItem(currentpage);
    }
    
    function rollOverMenuItem( id ) {
    
        switch(id)
        {
        case 1:
            document.getElementById('link1').className = 'link1Over';
          break;    
        case 2:
          document.getElementById('link2').className = 'link2Over';
          break;
        case 3:
          document.getElementById('link3').className = 'link3Over';
          break;
        case 5:
          document.getElementById('link5').className = 'link5Over';
          break;
        case 6:
          document.getElementById('link6').className = 'link6Over';
          break;                                 
        }
    }
    
    function rollOutMenuItem( id )
    {
        if (currentpage != id)
        {
            switch(id)
            {
            case 1:
              document.getElementById('link1').className = 'link1';
              break;    
            case 2:
              document.getElementById('link2').className = 'link2';
              break;
            case 3:
              document.getElementById('link3').className = 'link3';
              break;
            case 4:
              document.getElementById('link4').className = 'link4';
              break;
            case 5:
              document.getElementById('link5').className = 'link5';
              break;
            case 6:
              document.getElementById('link6').className = 'link6';
              break;                              
            } 
        }
    }