function photoChange01(n,m){
	var ph_num = m;
	for(i=0;i<ph_num;i++){
		if(i==n){
			document.getElementById("photo"+i).style.display = "block";
		}else{
			document.getElementById("photo"+i).style.display = "none";
		}
	}
}
function photoChange02(n,m){
	var ph_num = m;
	for(i=0;i<ph_num;i++){
		if(i==n){
			document.getElementById("navi"+i).style.display = "block";
		}else{
			document.getElementById("navi"+i).style.display = "none";
		}
	}
}