var deviceInfo = function() {
    document.getElementById("platform").innerHTML = device.platform;
    document.getElementById("version").innerHTML = device.version;
    document.getElementById("uuid").innerHTML = device.uuid;
    document.getElementById("name").innerHTML = device.name;
    document.getElementById("width").innerHTML = screen.width;
    document.getElementById("height").innerHTML = screen.height;
    document.getElementById("colorDepth").innerHTML = screen.colorDepth;
};


var getContacts = function () {
    function onSuccess(contacts) {
        for (var i = 0; i < navigator.contacts.length; i++) {
            for (var j = 0; j < contacts[i].addresses.length; j++) {
                alert("Name: " + contacts[i].name        + "\n" +
                    "Phone: "  + contacts[i].phoneNumbers[j].pref          + "\n" );
            }
        }
    };

    function onError(contactError) {
        alert('onError!');
    };

    // find all contacts that have phone number
    var options = new ContactFindOptions();
    options.hasPhoneNumber = true;
    var fields  = [navigator.contacts.fieldType.name];
    navigator.contacts.find(fields, onSuccess, onError, options);
};

function init() {
    // the next line makes it impossible to see Contacts on the HTC Evo since it
    // doesn't have a scroll button
    // document.addEventListener("touchmove", preventBehavior, false);
    document.addEventListener("deviceready", deviceInfo, true);
}