function b(i)
{
 switch(i)
 {
case 1:
document.getElementById("b1").style.display="block";
document.getElementById("b2").style.display="none";
document.getElementById("b3").style.display="none";
document.getElementById("b4").style.display="none";
document.getElementById("b5").style.display="none";
document.getElementById("b6").style.display="none";
document.getElementById("b7").style.display="none";
document.getElementById("b8").style.display="none";
break;
case 2:
document.getElementById("b1").style.display="none";
document.getElementById("b2").style.display="block";
document.getElementById("b3").style.display="none";
document.getElementById("b4").style.display="none";
document.getElementById("b5").style.display="none";
document.getElementById("b6").style.display="none";
document.getElementById("b7").style.display="none";
document.getElementById("b8").style.display="none";
break;
case 3:
document.getElementById("b1").style.display="none";
document.getElementById("b2").style.display="none";
document.getElementById("b3").style.display="block";
document.getElementById("b4").style.display="none";
document.getElementById("b5").style.display="none";
document.getElementById("b6").style.display="none";
document.getElementById("b7").style.display="none";
document.getElementById("b8").style.display="none";
break;
case 4:
document.getElementById("b1").style.display="none";
document.getElementById("b2").style.display="none";
document.getElementById("b3").style.display="none";
document.getElementById("b4").style.display="block";
document.getElementById("b5").style.display="none";
document.getElementById("b6").style.display="none";
document.getElementById("b7").style.display="none";
document.getElementById("b8").style.display="none";
break;
case 5:
document.getElementById("b1").style.display="none";
document.getElementById("b2").style.display="none";
document.getElementById("b3").style.display="none";
document.getElementById("b4").style.display="none";
document.getElementById("b5").style.display="block";
document.getElementById("b6").style.display="none";
document.getElementById("b7").style.display="none";
document.getElementById("b8").style.display="none";
break;
case 6:
document.getElementById("b1").style.display="none";
document.getElementById("b2").style.display="none";
document.getElementById("b3").style.display="none";
document.getElementById("b4").style.display="none";
document.getElementById("b5").style.display="none";
document.getElementById("b6").style.display="block";
document.getElementById("b7").style.display="none";
document.getElementById("b8").style.display="none";
break;
case 7:
document.getElementById("b1").style.display="none";
document.getElementById("b2").style.display="none";
document.getElementById("b3").style.display="none";
document.getElementById("b4").style.display="none";
document.getElementById("b5").style.display="none";
document.getElementById("b6").style.display="none";
document.getElementById("b7").style.display="block";
document.getElementById("b8").style.display="none";
break;
case 8:
document.getElementById("b1").style.display="none";
document.getElementById("b2").style.display="none";
document.getElementById("b3").style.display="none";
document.getElementById("b4").style.display="none";
document.getElementById("b5").style.display="none";
document.getElementById("b6").style.display="none";
document.getElementById("b7").style.display="none";
document.getElementById("b8").style.display="block";
break;
 }
}






function c(i)
{
 switch(i)
 {
 case 1:
document.getElementById("c1").style.display="block";
document.getElementById("c2").style.display="none";
break;
case 2:
document.getElementById("c1").style.display="none";
document.getElementById("c2").style.display="block";
break;

 }
}



function e(i)
{
 switch(i)
 {
case 1:
document.getElementById("e1").style.display="block";
document.getElementById("e2").style.display="none";
document.getElementById("e3").style.display="none";
document.getElementById("e4").style.display="none";
document.getElementById("e5").style.display="none";
document.getElementById("e6").style.display="none";
document.getElementById("e7").style.display="none";
document.getElementById("e8").style.display="none";
break;
case 2:
document.getElementById("e1").style.display="none";
document.getElementById("e2").style.display="block";
document.getElementById("e3").style.display="none";
document.getElementById("e4").style.display="none";
document.getElementById("e5").style.display="none";
document.getElementById("e6").style.display="none";
document.getElementById("e7").style.display="none";
document.getElementById("e8").style.display="none";
break;
case 3:
document.getElementById("e1").style.display="none";
document.getElementById("e2").style.display="none";
document.getElementById("e3").style.display="block";
document.getElementById("e4").style.display="none";
document.getElementById("e5").style.display="none";
document.getElementById("e6").style.display="none";
document.getElementById("e7").style.display="none";
document.getElementById("e8").style.display="none";
break;
case 4:
document.getElementById("e1").style.display="none";
document.getElementById("e2").style.display="none";
document.getElementById("e3").style.display="none";
document.getElementById("e4").style.display="block";
document.getElementById("e5").style.display="none";
document.getElementById("e6").style.display="none";
document.getElementById("e7").style.display="none";
document.getElementById("e8").style.display="none";
break;
case 5:
document.getElementById("e1").style.display="none";
document.getElementById("e2").style.display="none";
document.getElementById("e3").style.display="none";
document.getElementById("e4").style.display="none";
document.getElementById("e5").style.display="block";
document.getElementById("e6").style.display="none";
document.getElementById("e7").style.display="none";
document.getElementById("e8").style.display="none";
break;
case 6:
document.getElementById("e1").style.display="none";
document.getElementById("e2").style.display="none";
document.getElementById("e3").style.display="none";
document.getElementById("e4").style.display="none";
document.getElementById("e5").style.display="none";
document.getElementById("e6").style.display="block";
document.getElementById("e7").style.display="none";
document.getElementById("e8").style.display="none";
break;
case 7:
document.getElementById("e1").style.display="none";
document.getElementById("e2").style.display="none";
document.getElementById("e3").style.display="none";
document.getElementById("e4").style.display="none";
document.getElementById("e5").style.display="none";
document.getElementById("e6").style.display="none";
document.getElementById("e7").style.display="block";
document.getElementById("e8").style.display="none";
break;
case 8:
document.getElementById("e1").style.display="none";
document.getElementById("e2").style.display="none";
document.getElementById("e3").style.display="none";
document.getElementById("e4").style.display="none";
document.getElementById("e5").style.display="none";
document.getElementById("e6").style.display="none";
document.getElementById("e7").style.display="none";
document.getElementById("e8").style.display="block";
break;
 }
}