checkNombres = function (s) {
	return s.search(/^[a-z0-9áéíóúñ]+ [a-z0-9áéíóúñ]+ [a-z0-9áéíóúñ]+(\s[a-z0-9áéíóúñ]+)*$/gi) ? false : true;
}

checkDNI = function (s) {
	return s.search(/^[0-9]{8}$/) ? false : true;
}


checkPasswords = function(s)
{
  var frm = document.getElementById("frm");
  var t = frm.password.value + "";
  return t==s
}