//もしデータがあればチェックボックスをチェックする
function setDispFullCheckbox(){
	if(getIsDispFull()) {
		document.getElementById("disp_full").checked = true;
		}
		else document.getElementById("disp_full").checked =false;
}
function setIsDispFull(){
//	if(getIsDispFull()) document.cookie = "disp_full=false";
//	else document.cookie = "disp_full=true";

	if(document.getElementById("disp_full").checked) document.cookie = "disp_full=true";
	else document.cookie = "disp_full=false";
}
function getIsDispFull(){
	if(!document.cookie) return false;
	else {
		var disp_full_cookie = getCookieValue("disp_full");
		if(!disp_full_cookie || disp_full_cookie=="false") return false;	//クッキーにdisp_fullのデータがない、またはデータがfalseのとき
			
		else return true;
	}
}
function setOffDispFullCookie(){
	document.cookie = "disp_full=false";
}
function getCookieValue(arg){ //argはデータ識別文字列
	if(document.cookie){
		if(arg){
		cookieData = document.cookie + ";" //文字列の最後に「;」を追加
		startPoint1 = cookieData.indexOf(arg);
		startPoint2 = cookieData.indexOf("=",startPoint1)+1;	//=を含めない値を返す
		endPoint = cookieData.indexOf(";",startPoint1);
			if(startPoint2 < endPoint && startPoint1 > -1){
				cookieData = cookieData.substring(startPoint2,endPoint);
				cookieData = unescape(cookieData);
				//alert(document.cookie);
				return cookieData
			}
		}
	}
	return false
}