var app = {

    initialize: function(){         this.bindEvents();    },    bindEvents: function(){         document.addEventListener('deviceready', this.onDeviceReady, false);    },    onDeviceReady: function(){         app.foreachContacts();    },    foreachContacts: function(){         function onSuccess(contacts) {             for (var i=0; i<contacts.length; i++) {                 // display phone numbers                for (var j=0; j<contacts[i].phoneNumbers.length; j++) {                     var d = "Type: " + contacts[i].phoneNumbers[j].type + "\n" +                             "Value: "  + contacts[i].phoneNumbers[j].value + "\n" +                             "Preferred: "  + contacts[i].phoneNumbers[j].pref;                    document.getElementById("contact").innerHTML += "<li class=\"userinfo\">" + d + "</li>";                }            }        };                function onError(contactError) {             alert('onError!');        };                var options = new ContactFindOptions();                // id: A globally unique identifier. (DOMString)        // displayName: The name of this Contact, suitable for display to end-users. (DOMString)        // name: An object containing all components of a persons name. (ContactName)        // nickname: A casual name to address the contact by. (DOMString)        // phoneNumbers: An array of all the contact's phone numbers. (ContactField[])        // emails: An array of all the contact's email addresses. (ContactField[])        // addresses: An array of all the contact's addresses. (ContactAddress[])        // ims: An array of all the contact's IM addresses. (ContactField[])        // organizations: An array of all the contact's organizations. (ContactOrganization[])        // birthday: The birthday of the contact. (Date)        // note: A note about the contact. (DOMString)        // photos: An array of the contact's photos. (ContactField[])        // categories: An array of all the contacts user defined categories. (ContactField[])        // urls: An array of web pages associated to the contact. (ContactField[])        var fields = ["phoneNumbers"];        navigator.contacts.find(fields, onSuccess, onError);    }    }app.initialize();