function setSCookie(name, value, minutes) {
	var expireDate = new Date();
	if(typeof minutes!="undefined"){
		expireDate.setTime(expireDate.getTime()+(minutes*60*1000));
	}else{
		expireDate.setTime(expireDate.getTime()+(7200*60*1000));
	}
	document.cookie = name+"="+value+"; expires="+expireDate.toGMTString()+"; path=/";
	//alert(name+"="+value+"; expires="+expireDate.toGMTString()+"; path=/");
}
function getSCookie(name) {
	var re=new RegExp(name+"=[^;]+", "i");
	if (document.cookie.match(re))
	return document.cookie.match(re)[0].split("=")[1]
	return null
}
//期限は分単位で指定する(getTimeはミリ秒単位の演算)
//期限の指定がないときには７２００分(５日)にセットする