function secBoard(n,x,y)
{
  for(i=0;i<secTable.cells.length;i++){
    secTable.cells[i].className="secyd";
  secTable.cells[n].className="secy21";}
  for(i=0;i<mainTable.tBodies.length;i++){
    mainTable.tBodies[i].style.display="none";
  mainTable.tBodies[n].style.display="block";}
  weizi.innerHTML="<b>"+x.toUpperCase()+"</b>½éÉÜ<b>"+y+"</b>¾­Óª·¶Î§";
}