function chkFrm(frm) {
	var message = '';
	var re_email = /^[-a-z0-9_\.]+@{1}[-a-z0-9_\.]+\.{1}[-a-z0-9_\.]+$/i;

	var email = frm.email.value;

	if (!email.match(re_email) && !message) {
		message = 'Please enter valid e-mail address';
		frm.email.focus();
	}

	if (message) {
		alert(message);
		return false;
	} else {
		return true;
	}
}