//----------------------★クッキーの書込み-------------------
function setCookie(name,value){
  var argv=setCookie.arguments;
  var argc=setCookie.arguments.length;
  var expires=(argc>2) ? argv[2] : null;
  var path=(argc>3) ? argv[3] : null;
  var domain=(argc>4) ? argv[4] : null;
  var secure=(argc>5) ? argv[5] : false;

		document.cookie=name+"="+value+
		((expires == null) ? "" : ("; expires=" + expires.toGMTString())) +
		((path == null)      ? "" : ("; path=" + path)) +
		((domain == null)  ? "" : ("; domain=" + domain)) +
	((secure == true)  ? "; secure" : "");
}
//-----------データの設定-----現在クッキーの期限は1年後-------
function saveCookie(wData){
		var expdate = new Date ();
		expdate.setTime (expdate.getTime() + (24 * 60 * 60 * 1000 * 31 * 12));
		setCookie ("cosmotrade",wData,expdate);
	}
//----------------------★クッキーの読出し-------------------
function loadCookie(name){
		var arg  = name + "=";
		var alen = arg.length;
		var clen = document.cookie.length;
		var i = 0;
		while (i < clen){
					var j = i + alen;
					if (document.cookie.substring(i, j) == arg)
					return getVal(j);
					i = document.cookie.indexOf(" ", i) + 1;
					if (i == 0) break;
		}
		return null;
}
//-----------コード変換
function getVal(offset){
		var endstr = document.cookie.indexOf (";", offset);
		if (endstr == -1)
					endstr = document.cookie.length;
					return unescape(document.cookie.substring(offset,endstr));
}
//-----------------------★クッキーの消去-------------------
function delCookie(name){
	var exp=new Date()
	exp.setTime(exp.getTime()-1)
	var cval=setCookie(name)
	document.cookie=name+"="+cval+"; expires="+exp.toGMTString()
}