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