function ShowA(id)
{
var op1 = "A";
for (var i= 1;i<7;i++)
{
var ob1 = document.getElementById(op1 + i);
var link = document.getElementById("lin" + i);
if (i == id)
{
ob1.style.display = "";
link.className = "li1";
}
else
{
ob1.style.display = "none";
link.className = "li11";
}
}
}

function Showb(id)
{
var op1 = "b";
for (var i= 1;i<4;i++)
{
var ob1 = document.getElementById(op1 + i);
var link = document.getElementById("linn" + i);
if (i == id)
{
ob1.style.display = "";
link.className = "li1";
}
else
{
ob1.style.display = "none";
link.className = "li11";
}
}
}