function CheckData() {
	var oEmail = document.getElementById("login");
	var oPassword = document.getElementById("password");

	if(oEmail!=null&&oEmail.value!="") {
		if(!emailCheck(oEmail.value)) {
			alert("Ýëåêòðîïî÷òà ââåäåíà íåâåðíî.");
			oEmail.focus();
			return false;
		}
	}
	else {
		alert("Ââåäèòå ýëåêòðîïî÷òó.");
		oEmail.focus();
		return false;
	}
	
	if(oPassword==null||oPassword.value=="") {
		alert("Ââåäèòå ïàðîëü.");
		oPassword.focus();
		return false;
	}

	return true;
}
function emailCheck (emailStr) {

	var emailPat = /^[a-zA-Z0-9\._-]+\@(\[?)[a-zA-Z0-9\-\.]+\.([a-zA-Z]{2,4}|[0-9]{1,3})(\]?)$/;
	var matchArray = emailStr.match(emailPat);
	
	if (matchArray==null) return false;
	else return true;
}