<!--
     function secBoard(n)
  {
    for(i=0;i<secTable.cells.length;i++)
    secTable.cells[i].className="sec1";
    secTable.cells[n].className="sec2";
    for(i=0;i<mainTable.tBodies.length;i++)
    mainTable.tBodies[i].style.display="none";
    mainTable.tBodies[n].style.display="block";
  }


     function secBoard2(n)
  {
    for(i=0;i<secTable2.cells.length;i++)
    secTable2.cells[i].className="sec11";
    secTable2.cells[n].className="sec22";
    for(i=0;i<mainTable2.tBodies.length;i++)
    mainTable2.tBodies[i].style.display="none";
    mainTable2.tBodies[n].style.display="block";
  }

     function secBoard1(n)
  {
    for(i=0;i<secTable1.cells.length;i++)
    secTable1.cells[i].className="sec11";
    secTable1.cells[n].className="sec22";
    for(i=0;i<mainTable1.tBodies.length;i++)
    mainTable1.tBodies[i].style.display="none";
    mainTable1.tBodies[n].style.display="block";
  }
-->