function go(url) {
	window.location.href = url;
}

function chkMail(sMail) {
	var re = /^(([^<>()[\]\\.,;:\s@\"]+(\.[^<>()[\]\\.,;:\s@\"]+)*)|(\".+\"))@((\[[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\])|(([a-zA-Z\-0-9]+\.)+[a-zA-Z]{2,}))$/
	return sMail.match(re);
}

function chkChars(e, chars) {
	var key;
	var keychar;

	if (window.event)
		key = window.event.keyCode;
	else if (e)
		key = e.which;
	else
		return true;

	keychar = String.fromCharCode(key);
	keychar = keychar.toLowerCase();

	// control keys
	if ((key == null) || (key == 0) || (key == 8) || (key == 9) || (key == 13) || (key == 27))
		return true;

	else if ((chars.indexOf(keychar) > -1))
		return true;
	else
		return false;
}