function GetBbs() {
var bbsId = document.bbsForm.Id.value;
var bbsPswd = document.bbsForm.Pswd.value;
if (bbsId == "matsu" && bbsPswd == "0123")
location.href = "http://www.aqro.jp/cgi-local/joyful/joyful.cgi";
else		
alert('IDかパスワードが違います。');		
}