function bb(i){
	switch (i){
case 1:
document.getElementById("bb1").style.display="block";
document.getElementById("bb2").style.display="none";
document.getElementById("bb3").style.display="none";
document.getElementById("bb4").style.display="none";
document.getElementById("bb5").style.display="none";
document.getElementById("bb6").style.display="none";
document.getElementById("bb7").style.display="none";
document.getElementById("bb8").style.display="none";
document.getElementById("bb9").style.display="none";
document.getElementById("bb10").style.display="none";
document.getElementById("bb11").style.display="none";
break;
case 2:
document.getElementById("bb1").style.display="none";
document.getElementById("bb2").style.display="block";
document.getElementById("bb3").style.display="none";
document.getElementById("bb4").style.display="none";
document.getElementById("bb5").style.display="none";
document.getElementById("bb6").style.display="none";
document.getElementById("bb7").style.display="none";
document.getElementById("bb8").style.display="none";
document.getElementById("bb9").style.display="none";
document.getElementById("bb10").style.display="none";
document.getElementById("bb11").style.display="none";
break;
case 3:
document.getElementById("bb1").style.display="none";
document.getElementById("bb2").style.display="none";
document.getElementById("bb3").style.display="block";
document.getElementById("bb4").style.display="none";
document.getElementById("bb5").style.display="none";
document.getElementById("bb6").style.display="none";
document.getElementById("bb7").style.display="none";
document.getElementById("bb8").style.display="none";
document.getElementById("bb9").style.display="none";
document.getElementById("bb10").style.display="none";
document.getElementById("bb11").style.display="none";
break;
case 4:
document.getElementById("bb1").style.display="none";
document.getElementById("bb2").style.display="none";
document.getElementById("bb3").style.display="none";
document.getElementById("bb4").style.display="block";
document.getElementById("bb5").style.display="none";
document.getElementById("bb6").style.display="none";
document.getElementById("bb7").style.display="none";
document.getElementById("bb8").style.display="none";
document.getElementById("bb9").style.display="none";
document.getElementById("bb10").style.display="none";
document.getElementById("bb11").style.display="none";
break;
case 5:
document.getElementById("bb1").style.display="none";
document.getElementById("bb2").style.display="none";
document.getElementById("bb3").style.display="none";
document.getElementById("bb4").style.display="none";
document.getElementById("bb5").style.display="block";
document.getElementById("bb6").style.display="none";
document.getElementById("bb7").style.display="none";
document.getElementById("bb8").style.display="none";
document.getElementById("bb9").style.display="none";
document.getElementById("bb10").style.display="none";
document.getElementById("bb11").style.display="none";
break;
case 6:
document.getElementById("bb1").style.display="none";
document.getElementById("bb2").style.display="none";
document.getElementById("bb3").style.display="none";
document.getElementById("bb4").style.display="none";
document.getElementById("bb5").style.display="none";
document.getElementById("bb6").style.display="block";
document.getElementById("bb7").style.display="none";
document.getElementById("bb8").style.display="none";
document.getElementById("bb9").style.display="none";
document.getElementById("bb10").style.display="none";
document.getElementById("bb11").style.display="none";
break;
case 7:
document.getElementById("bb1").style.display="none";
document.getElementById("bb2").style.display="none";
document.getElementById("bb3").style.display="none";
document.getElementById("bb4").style.display="none";
document.getElementById("bb5").style.display="none";
document.getElementById("bb6").style.display="none";
document.getElementById("bb7").style.display="block";
document.getElementById("bb8").style.display="none";
document.getElementById("bb9").style.display="none";
document.getElementById("bb10").style.display="none";
document.getElementById("bb11").style.display="none";
break;
case 8:
document.getElementById("bb1").style.display="none";
document.getElementById("bb2").style.display="none";
document.getElementById("bb3").style.display="none";
document.getElementById("bb4").style.display="none";
document.getElementById("bb5").style.display="none";
document.getElementById("bb6").style.display="none";
document.getElementById("bb7").style.display="none";
document.getElementById("bb8").style.display="block";
document.getElementById("bb9").style.display="none";
document.getElementById("bb10").style.display="none";
document.getElementById("bb11").style.display="none";
break;
case 9:
document.getElementById("bb1").style.display="none";
document.getElementById("bb2").style.display="none";
document.getElementById("bb3").style.display="none";
document.getElementById("bb4").style.display="none";
document.getElementById("bb5").style.display="none";
document.getElementById("bb6").style.display="none";
document.getElementById("bb7").style.display="none";
document.getElementById("bb8").style.display="none";
document.getElementById("bb9").style.display="block";
document.getElementById("bb10").style.display="none";
document.getElementById("bb11").style.display="none";
break;
case 10:
document.getElementById("bb1").style.display="none";
document.getElementById("bb2").style.display="none";
document.getElementById("bb3").style.display="none";
document.getElementById("bb4").style.display="none";
document.getElementById("bb5").style.display="none";
document.getElementById("bb6").style.display="none";
document.getElementById("bb7").style.display="none";
document.getElementById("bb8").style.display="none";
document.getElementById("bb9").style.display="none";
document.getElementById("bb10").style.display="block";
document.getElementById("bb11").style.display="none";
break;
case 11:
document.getElementById("bb1").style.display="none";
document.getElementById("bb2").style.display="none";
document.getElementById("bb3").style.display="none";
document.getElementById("bb4").style.display="none";
document.getElementById("bb5").style.display="none";
document.getElementById("bb6").style.display="none";
document.getElementById("bb7").style.display="none";
document.getElementById("bb8").style.display="none";
document.getElementById("bb9").style.display="none";
document.getElementById("bb10").style.display="none";
document.getElementById("bb11").style.display="block";
break;
	}
}