function sendmail() {

	var el = document.getElementById('name');
	if (el.value == '') {
        alert(sprintf(WARN_FILL, NAME));      
		el.focus();
		return false;
	}

	el = document.getElementById('family_name');
	if (el.value == '') {
        alert(sprintf(WARN_FILL, FAMILY_NAME));      
		el.focus();
		return false;
	}

	el = document.getElementById('email');
	if (el.value == '') {
        alert(sprintf(WARN_FILL, E_MAIL));      
		el.focus();
		return false;
	}

	el = document.getElementById('message');
	if (el.value == '') {
        alert(sprintf(WARN_FILL, MESSAGE));
		el.focus();
		return false;
	}

	document.form1.submit();
	return true;
}