function isEmailCorrect() {
    str = document.getElementById('email').value;
	var re = /^\w+([\.-]?\w+)*@(((([a-z0-9]{2,})|([a-z0-9][-][a-z0-9]+))[\.][a-z0-9])|([a-z0-9]+[-]?))+[a-z0-9]+\.([a-z]{2}|(com|net|org|edu|int|mil|gov|arpa|biz|aero|name|coop|info|pro|museum))$/i;
	if(re.test(str)) return true;
	else {
	    alert('Ââåäèòå ïðàâèëüíûå email');
		return false;
	}
}