// JavaScript Document
     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 secBoarda(n)
  {
    for(i=0;i<secTablea.cells.length;i++)
    secTablea.cells[i].className="sec1";
    secTablea.cells[n].className="sec2";
    for(i=0;i<mainTablea.tBodies.length;i++)
    mainTablea.tBodies[i].style.display="none";
    mainTablea.tBodies[n].style.display="block";
  }
  
     function secBoardb(n)
  {
    for(i=0;i<secTableb.cells.length;i++)
    secTableb.cells[i].className="sec1";
    secTableb.cells[n].className="sec2";
    for(i=0;i<mainTableb.tBodies.length;i++)
    mainTableb.tBodies[i].style.display="none";
    mainTableb.tBodies[n].style.display="block";
  }
  
     function secBoardc(n)
  {
    for(i=0;i<secTablec.cells.length;i++)
    secTablec.cells[i].className="sec1";
    secTablec.cells[n].className="sec2";
    for(i=0;i<mainTablec.tBodies.length;i++)
    mainTablec.tBodies[i].style.display="none";
    mainTablec.tBodies[n].style.display="block";
  }
  
     function secBoardd(n)
  {
    for(i=0;i<secTabled.cells.length;i++)
    secTabled.cells[i].className="sec1";
    secTabled.cells[n].className="sec2";
    for(i=0;i<mainTabled.tBodies.length;i++)
    mainTabled.tBodies[i].style.display="none";
    mainTabled.tBodies[n].style.display="block";
  }
  
     function secBoarde(n)
  {
    for(i=0;i<secTablee.cells.length;i++)
    secTablee.cells[i].className="sec1";
    secTablee.cells[n].className="sec2";
    for(i=0;i<mainTablee.tBodies.length;i++)
    mainTablee.tBodies[i].style.display="none";
    mainTablee.tBodies[n].style.display="block";
  }
  
     function secBoardf(n)
  {
    for(i=0;i<secTablef.cells.length;i++)
    secTablef.cells[i].className="sec1";
    secTablef.cells[n].className="sec2";
    for(i=0;i<mainTablef.tBodies.length;i++)
    mainTablef.tBodies[i].style.display="none";
    mainTablef.tBodies[n].style.display="block";
  }