function addformfortest () {
	var name = document.getElementById ('name');
	var mail = document.getElementById ('mail');
	var info = document.getElementById ('info');
	var sent = document.getElementById ('sent');
	var reason = document.getElementById ('reason');
	if (name && mail && info && sent) {
		sent.disabled = !name.value || name.value.length < 3 || !mail.value || mail.value.length < 5 || !info.value || info.value.length < 3;
	}
	if (sent.disabled) {
		reason.className = 'reason';
	}
	else {
		reason.className = 'hidden';
	}
}