phonegap-navigator.app.loadUrl Fehler

ich versuche die Verwendung des navigator.app.loadUrl in deviceready-problem kann nicht rufen Sie die Methode loadURL, und dies ist mein script index.html

<script type="text/javascript">
window.apps = {
    loadURL : function(url){
        navigator.app.loadUrl('file:///android_asset/www/' + url);
        return false;       
    },
    callBack : function(){
        //code disini
    },
    saveStorage: function(name,val){
        window.localStorage.setItem(name,val);
        return false;
    },
    getStorage: function(name){
        window.localStorage.getItem(name);
    }

};
</script>     
<script type="text/javascript">
    function init(){
        document.addEventListener("deviceready", onDeviceReady(), true);
    }

    function onDeviceReady(){

         doInit();
    }

    function doInit(){
        apps.loadURL('index.html');
    }


    </script>;

dann myactivity.java

package com.example.learyphonegap;

import android.annotation.SuppressLint;
import android.os.Bundle;
import org.apache.cordova.*;
import android.webkit.CookieManager;

@SuppressLint("NewApi")
public class MainActivity extends DroidGap {

    @Override
    public void onCreate(Bundle savedInstanceState)
    {
        CookieManager.setAcceptFileSchemeCookies(true);
        super.onCreate(savedInstanceState);
        super.init();

        super.setBooleanProperty("loadInWebView", true);
        super.setIntegerProperty("loadUrlTimeoutValue", 70000);
        super.setStringProperty("errorUrl", "file:///android_asset/www/error.html");
        super.loadUrl("file:///android_asset/www/index.html");
    }
}

habe ich googeln das problem und nicht finden, das gleiche problem