function showsub(ele1, ele2, ele3)
{
document.getElementById('a11').style.display="block";
document.getElementById('a21').style.display="block";
document.getElementById('a31').style.display="block";
document.getElementById('a41').style.display="block";
document.getElementById('a51').style.display="block";
document.getElementById('a61').style.display="block";
document.getElementById('a71').style.display="block";
document.getElementById('a81').style.display="block";

document.getElementById('a12').style.display="none";
document.getElementById('a22').style.display="none";
document.getElementById('a32').style.display="none";
document.getElementById('a42').style.display="none";
document.getElementById('a52').style.display="none";
document.getElementById('a62').style.display="none";
document.getElementById('a72').style.display="none";
document.getElementById('a82').style.display="none";

document.getElementById('s1').style.display="none";
document.getElementById('s2').style.display="none";
document.getElementById('s3').style.display="none";
document.getElementById('s4').style.display="none";
document.getElementById('s5').style.display="none";
document.getElementById('s6').style.display="none";
document.getElementById('s7').style.display="none";
document.getElementById('s8').style.display="none";

document.getElementById(ele1).style.display="none";
document.getElementById(ele2).style.display="block";
document.getElementById(ele3).style.display="block";
}

function showsubc(ele1, ele2, ele3)
{
document.getElementById('a11').style.display="block";
document.getElementById('a21').style.display="block";
document.getElementById('a31').style.display="block";

document.getElementById('a12').style.display="none";
document.getElementById('a22').style.display="none";
document.getElementById('a32').style.display="none";

document.getElementById('s1').style.display="none";
document.getElementById('s2').style.display="none";
document.getElementById('s3').style.display="none";

document.getElementById(ele1).style.display="none";
document.getElementById(ele2).style.display="block";
document.getElementById(ele3).style.display="block";
}

function hidesub(ele1, ele2, ele3)
{
document.getElementById(ele1).style.display="none";
document.getElementById(ele2).style.display="block";
document.getElementById(ele3).style.display="none";
}