function city_change(form_name)
{
	city_code = document.forms[form_name].city_code.value;
        first_name = document.forms[form_name].first_name.value;
        family_name = document.forms[form_name].family_name.value;
        id_number = document.forms[form_name].id_number.value;
	national_code = document.forms[form_name].national_code.value;
        id_from = document.forms[form_name].id_from.value;
        father_name = document.forms[form_name].father_name.value;
        day = document.forms[form_name].day.value;
        month = document.forms[form_name].month.value;
        year = document.forms[form_name].year.value;
        phone = document.forms[form_name].phone.value;
        address = document.forms[form_name].address.value;
        postal_code = document.forms[form_name].postal_code.value;
	destination = 'index.php?city_code='+city_code+'&first_name='+first_name+'&family_name='+family_name+'&id_number='+id_number+'&national_code='+national_code+'&id_from='+id_from+'&father_name='+father_name+'&day='+day+'&month='+month+'&year='+year+'&phone='+phone+'&address='+address+'&postal_code='+postal_code;
	if (destination) location.href = destination;
}