function validateEmail(o){
	val = o.value;
	var dm = "[A-Za-z][A-Za-z0-9_-]*";
	var rxstr = "^[^@]+@" + dm + "(\\." + dm  + ")+$";
	var rx = new RegExp(rxstr);
	if (rx.test(val))
		return true;
	alert("Ââåäåí íåêîððåêòíûé àäðåñ ýëåêòðîííîé ïî÷òû");
	o.focus();
	return false;
}