function fnJMailCheck(form) {
		if (!isText(form.jmail.value)) {
			alert("Please input your email");
			form.jmail.focus();
			return false;
		}
		if (!isEmail(form.jmail.value)) {
			alert("Please input valid email");
			form.jmail.focus();
			return false;
		}
		return true;
	}