call register API for pingjam SDK (phonegap)

index.js

var app = {
    ..
    ..
    onDeviceReady: function() {
        app.receivedEvent('deviceready');
        pingjam = new Pingjam();
        pingjam.register({type:Pingjam.TYPE_ACTIVITY});
        // available options are 
        // customButtonStyle (boolean / default true ): use gray buttons or green for ok and red for cancel 
        // nag (boolean / default false ): continue to display the registration dialog if user press cancel
        // showImage (boolean / default true): display an example service image in the opt-in dialog
        // theme (number / fefault Pingjam.THEME_LIGHT): display a dark or light themed dialog 
        // type (number / default Pingjam.TYPE_MODAL ): open the opt-in dialog as a modal window (popup) or activity (full screen)
        // example json options {nag:true,type:Pingjam.TYPE_ACTIVITY,theme:Pingjam.THEME_DARK}
    },
    ..
    ..
};