function Check()
{
	strUrl = document.referrer;
	varUrl = strUrl.slice(-6);

	if (varUrl == "?type0")
	{
		location.href += "?type0";
	}
	else if (varUrl == "?typea")
	{
		location.href += "?typea";
	}
	else if (varUrl == "?typeb")
	{
		location.href += "?typeb";
	}
	else if (varUrl == "?typec")
	{
		location.href += "?typec";
	}
	else if (varUrl == "?kaigi")
	{
		location.href += "?kaigi";
	}
}
Check()