//トップページタブ切替え
function tab01() { 
	document.getElementById("tab01").setAttribute("className", "tab01_on");
	document.getElementById("tab02").setAttribute("className", "tab02");
	document.getElementById("tab03").setAttribute("className", "tab03");
	document.getElementById("tab01").setAttribute("class", "tab01_on");
	document.getElementById("tab02").setAttribute("class", "tab02");
	document.getElementById("tab03").setAttribute("class", "tab03");
	document.getElementById("category01").style.display = "block";
	document.getElementById("category02").style.display = "none";
	document.getElementById("category03").style.display = "none";
}
function tab02() { 
	document.getElementById("tab01").setAttribute("className", "tab01");
	document.getElementById("tab02").setAttribute("className", "tab02_on");
	document.getElementById("tab03").setAttribute("className", "tab03");
	document.getElementById("tab01").setAttribute("class", "tab01");
	document.getElementById("tab02").setAttribute("class", "tab02_on");
	document.getElementById("tab03").setAttribute("class", "tab03");
	document.getElementById("category01").style.display = "none";
	document.getElementById("category02").style.display = "block";
	document.getElementById("category03").style.display = "none";
}
function tab03() { 
	document.getElementById("tab01").setAttribute("className", "tab01");
	document.getElementById("tab02").setAttribute("className", "tab02");
	document.getElementById("tab03").setAttribute("className", "tab03_on");
	document.getElementById("tab01").setAttribute("class", "tab01");
	document.getElementById("tab02").setAttribute("class", "tab02");
	document.getElementById("tab03").setAttribute("class", "tab03_on");
	document.getElementById("category01").style.display = "none";
	document.getElementById("category02").style.display = "none";
	document.getElementById("category03").style.display = "block";
}