function check_login(TheForm) {
	if(TheForm.user_id.value == "") {
		alert("아이디를 입력하세요");
		TheForm.user_id.focus();
		return false;
	}
	if(TheForm.passwd.value == "") {
		alert("비밀번호를 입력하세요");
		TheForm.passwd.focus();
		return false;
	}
	return true;
}

function join(gid) {
	var url;
	url = "./member_join.php?gid="+gid
	window.open(url,"_self");
}

function find_passwd(URL) {
	window.open(URL,'_j_find_passwd','width=350,height=260,scrollbars=no');
}