function check_newsletterform() {
	if(document.newsletter.email_newsletter.value == "") {
	alert('{$lang.jserrror_noemail_newsletter}');
	document.newsletter.email_newsletter.focus();
	return false;
	}

	if(document.newsletter.name_newsletter.value == "") {
	alert('{$lang.jserrror_noname_newsletter}');
	document.newsletter.name_newsletter.focus();
	return false;
	}
}