//------------------------------------------------------------
// フォームのname属性を「eventForm」にすること
// 性別のname属性を「sex」にすること
// 会員登録チェックのname属性を「mem_reg_flg」にすること
// メール配信チェックのname属性を「send_flg」にすること
//------------------------------------------------------------

function EnableRegMember() {
	document.eventForm.mem_reg_flg.disabled = false;
	CheckRegMemberFlg();
}

function DisableRegMember() {
	document.eventForm.mem_reg_flg.checked = false;
	document.eventForm.send_flg.checked = false;
	document.eventForm.dummy5.checked = false;
	document.eventForm.nickname.value = "";
	document.eventForm.mem_reg_flg.disabled = true;
	document.eventForm.send_flg.disabled = true;
	document.eventForm.dummy5.disabled = true;
	document.eventForm.nickname.disabled = true;
}

function CheckRegMemberFlg() {
	if (document.eventForm.mem_reg_flg.checked == false) {
		document.eventForm.send_flg.checked = false;
		document.eventForm.dummy5.checked = false;
		document.eventForm.nickname.value = "";
		document.eventForm.send_flg.disabled = true;
		document.eventForm.dummy5.disabled = true;
		document.eventForm.nickname.disabled = true;
	} else {
		document.eventForm.send_flg.disabled = false;
		document.eventForm.dummy5.disabled = false;
		document.eventForm.nickname.disabled = false;
	}
}