var customer = function(data) {
    var self = this;
    self.id = ko.observable();
    self.first_name = ko.observable();
    self.middle_name = ko.observable();
    self.last_name = ko.observable();
    self.address = ko.observable();
    self.contact = ko.observable();
    self.nationality =  ko.observable();
    self.date_of_birth =  ko.observable();
    self.source_of_income =  ko.observable();
    self.birth_place =  ko.observable();
    self.occupation =  ko.observable();
    self.id_type =  ko.observable();
    self.id_number =  ko.observable();
    self.id_expiry =  ko.observable();
    self.id_place_of_issue =  ko.observable();
    self.address_region = ko.observable();
    self.address_province = ko.observable();
    self.address_city = ko.observable();
    self.address_zipcode = ko.observable();
    self.address_street = ko.observable();
    self.address_ref_num = ko.observable();
    self.address_nationality = ko.observable();
    self.address_birth_place = ko.observable();
    self.address_source_of_income = ko.observable();
    self.address_occupation = ko.observable();
    self.id_expiry_formated = ko.computed(function() {
        if (self.id_expiry() != undefined) {
            console.log("formating");
            var dob = new Date(self.id_expiry());
            dob = ((dob.getMonth() > 8) ? (dob.getMonth() + 1) : ('0' + (dob.getMonth() + 1))) + '/' + ((dob.getDate() > 9) ? dob.getDate() : ('0' + dob.getDate())) + '/' + dob.getFullYear();
            return dob;
        }
        return '';
    }, this);
    if (data) {
        self.update(data);
    }
}
customer.prototype.update = function(data) {
    this.id(data.id);
    this.first_name(data.first_name);
    this.middle_name(data.middle_name);
    this.last_name(data.last_name);
    this.address(data.address);
    this.contact(data.contact);
    this.nationality(data.nationality);
    this.date_of_birth(data.date_of_birth);
    this.source_of_income(data.source_of_income);
    this.birth_place(data.birth_place);
    this.occupation(data.occupation);
    this.id_type(data.id_type);
    this.id_number(data.id_number);
    this.id_expiry(data.id_expiry);
    this.id_place_of_issue(data.id_place_of_issue);
    this.address_region(data.id_place_of_issue);
    this.address_province(data.province);
    this.address_city(data.address_city);
    this.address_zipcode(data.address_zipcode);
    this.address_street(data.address_street);
    this.address_ref_num(data.address_ref_num);
    this.address_nationality(data.address_nationality);
    this.address_birth_place(data.address_birth_place);
    this.address_source_of_income(data.address_source_of_income);
    this.address_occupation(data.address_occupation);
};