function News_Fst_layer(lyN,IntNum)
  {
    if(lyN)
    {
      for(i=1;i<=IntNum;i++)
      {
        if(i == lyN)
        {
          document.all['Fst_RLayer'+i].style.display = "";
        }
        else
        {
          document.all['Fst_RLayer'+i].style.display = "none";
        }
      }
    }
    else
    {
      for(i=1;i<=IntNum;i++)
      {
        document.all['Fst_RLayer'+i].style.display = "none";
      }
    }
  }

  function News_Sed_layer(lyN,IntNum)
  {
    if(lyN)
    {
      for(i=1;i<=IntNum;i++)
      {
        if(i == lyN)
        {
          document.all['Sed_RLayer'+i].style.display = "";
        }
        else
        {
          document.all['Sed_RLayer'+i].style.display = "none";
        }
      }
    }
    else
    {
      for(i=1;i<=IntNum;i++)
      {
        document.all['Sed_RLayer'+i].style.display = "none";
      }
    }
  }

  function News_Thd_layer(lyN,IntNum)
  {
    if(lyN)
    {
      for(i=1;i<=IntNum;i++)
      {
        if(i == lyN)
        {
          document.all['Thd_RLayer'+i].style.display = "";
        }
        else
        {
          document.all['Thd_RLayer'+i].style.display = "none";
        }
      }
    }
    else
    {
      for(i=1;i<=IntNum;i++)
      {
        document.all['Thd_RLayer'+i].style.display = "none";
      }
    }
  }

  function News_Four_layer(lyN,IntNum)
  {
    if(lyN)
    {
      for(i=1;i<=IntNum;i++)
      {
        if(i == lyN)
        {
          document.all['Four_RLayer'+i].style.display = "";
        }
        else
        {
          document.all['Four_RLayer'+i].style.display = "none";
        }
      }
    }
    else
    {
      for(i=1;i<=IntNum;i++)
      {
        document.all['Four_RLayer'+i].style.display = "none";
      }
    }
  }