var pushConfig = {
    pushServerURL: "<pushServerURL e.g http(s)//host:port/context >",

    alias: "<alias e.g. a username or an email address optional>",
    android: {
      senderID: "<senderID e.g Google Project ID only for android>",
      variantID: "<variantID e.g. 1234456-234320>",
      variantSecret: "<variantSecret e.g. 1234456-234320>"
    },
    ios: {
      variantID: "<variantID e.g. 1234456-234320>",
      variantSecret: "<variantSecret e.g. 1234456-234320>"
    }
};

push.register(onNotification, errorHandler, pushConfig);

function onNotification(event) {
  alert(event.alert);
}

function errorHandler(error) {
  throw error;
}