function CheckEmail() {
	if ((
	((document.news_mail.news_subscribe.value.indexOf("@")) < 1)
	|| 
	((document.news_mail.news_subscribe.value.indexOf(".")) < 1))
	||
        ((document.news_mail.news_subscribe.value.length) < 4)) {
                alert("You have entered wrong E-mail!");
                document.news_mail.news_subscribe.focus();
                return false;
        }
	return true;
return true;
}

function CheckEmail1() {
	if ((
	((document.calendar_mail.calendar_subscribe.value.indexOf("@")) < 1)
	|| 
	((document.calendar_mail.calendar_subscribe.value.indexOf(".")) < 1))
	||
        ((document.calendar_mail.calendar_subscribe.value.length) < 4)) {
                alert("You have entered wrong  E-mail!");
                document.calendar_mail.calendar_subscribe.focus();
                return false;
        }
	return true;
return true;
}
	
function disableForm() {
	document.getElementById('knopka1').disabled = true;
}
function disableForm1() {
	document.getElementById('knopka2').disabled = true;
}