function CV_RequiredRadioValidate(id_form, radio_name){
	var form = CV_getObjectById(id_form);
	eval("var radio = form."+radio_name);
	
	for (var i=0; i < radio.length; i++)
    {
     if (radio[i].checked)
        {
          return true;
        }
    }
	return false;
}