function check(forma) {
	if(forma.imie.value.length < '1') { alert('Enter name'); return false; }
	if(forma.email.value.length > '0') {
		var re = new RegExp("[^@]{1,}[@]{1}[^@.]{1,}[.]{1}[^@]{1,}","gi");
		var wynik = re.test(forma.email.value);
		if (wynik == false) {
			alert('Wrong E-mail');
			return false;
		}
	} else {
		alert('Enter E-mail');
		return false;
	}
	if(forma.tresc.value.length < '1') { alert('Enter message'); return false; }
	if(forma.wyrazam_zgode.checked == false) { alert('You have to accept the rules'); return false; }

	return true;
}