function ini() {
    if(document.cookie == "gtck1"){
	document.getElementById("content01").style.display = "block";
	document.getElementById("content02").style.display = "none";
	document.getElementById("content03").style.display = "none";
	document.getElementById("content04").style.display = "none";
	document.getElementById("content05").style.display = "none";
	}
	else if(document.cookie == "gtck2"){
	document.getElementById("content01").style.display = "none";
	document.getElementById("content02").style.display = "block";
	document.getElementById("content03").style.display = "none";
	document.getElementById("content04").style.display = "none";
	document.getElementById("content05").style.display = "none";
	}
	else if(document.cookie == "gtck3"){
	document.getElementById("content01").style.display = "none";
	document.getElementById("content02").style.display = "none";
	document.getElementById("content03").style.display = "block";
	document.getElementById("content04").style.display = "none";
	document.getElementById("content05").style.display = "none";
	}
	else if(document.cookie == "gtck4"){
	document.getElementById("content01").style.display = "none";
	document.getElementById("content02").style.display = "none";
	document.getElementById("content03").style.display = "none";
	document.getElementById("content04").style.display = "block";
	document.getElementById("content05").style.display = "none";
	}
	else if(document.cookie == "gtck5"){
	document.getElementById("content01").style.display = "none";
	document.getElementById("content02").style.display = "none";
	document.getElementById("content03").style.display = "none";
	document.getElementById("content04").style.display = "none";
	document.getElementById("content05").style.display = "block";
	}
	else{
	document.getElementById("content01").style.display = "none";
	document.getElementById("content02").style.display = "none";
	document.getElementById("content03").style.display = "none";
	document.getElementById("content04").style.display = "block";
	document.getElementById("content05").style.display = "none";
	}
}

function btn(sel,btn) {
	//表示をリセット
	document.getElementById("content01").style.display = "none";
	document.getElementById("content02").style.display = "none";
	document.getElementById("content03").style.display = "none";
	document.getElementById("content04").style.display = "none";
	document.getElementById("content05").style.display = "none";
	
	//ボタンの色をリセット
	document.getElementById("b01").style.backgroundColor = "#FFFFFF";
	document.getElementById("b02").style.backgroundColor = "#FFFFFF";
	document.getElementById("b03").style.backgroundColor = "#FFFFFF";
	
	
	//クリックされたボタンに対応したブロックを表示
	document.getElementById(sel).style.display = "block";
	
	//ボタンの色を変更
	document.getElementById(btn).style.backgroundColor = "#FFFFFF";
}