function my_i_bot_staset(obj,sta){
	if(sta==0){
		obj.style.display='none';
	}else{
		obj.style.display='';
	}
}

function my_i_bot1(){
	my_i_bot_staset(ii1,1)
	my_i_bot_staset(ii2,0)
	my_i_bot_staset(ii3,0)
}

function my_i_bot2(){
	my_i_bot_staset(ii1,0)
	my_i_bot_staset(ii2,1)
	my_i_bot_staset(ii3,0)
}
function my_i_bot3(){
	my_i_bot_staset(ii1,0)
	my_i_bot_staset(ii2,0)
	my_i_bot_staset(ii3,1)
}
function my_i_bot4(){
	my_i_bot_staset(ii4,1)
	my_i_bot_staset(ii5,0)
}

function my_i_bot5(){
	my_i_bot_staset(ii4,0)
	my_i_bot_staset(ii5,1)
}