/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */
var app = {
    // Application Constructor
    initialize: function() {
        this.bindEvents();
    },
    // Bind Event Listeners
    //
    // Bind any events that are required on startup. Common events are:
    // 'load', 'deviceready', 'offline', and 'online'.
    bindEvents: function() {
        document.addEventListener('deviceready', this.onDeviceReady, false);
        document.addEventListener("offline", this.onOffline, false);
    },
    // deviceready Event Handler
    //
    // The scope of 'this' is the event. In order to call the 'receivedEvent'
    // function, we must explicitly call 'app.receivedEvent(...);'
    onOffline: function() {
    window.location.href="offline.html";
    },
    onDeviceReady: function() {    
    if((navigator.connection.type).toUpperCase() != "NONE" &&
       (navigator.network.connection.type).toUpperCase() != "UNKNOWN") {
    //ONLINE
    window.location.href="http://kraftstoffbilliger.de/m3/";
        
        
        
    setInterval(function() {
      if((navigator.connection.type).toUpperCase() != "NONE" &&
       (navigator.network.connection.type).toUpperCase() != "UNKNOWN") {} else {
      window.location.href="offline.html";
      }
    }, 5000);
  
                
        
    } else {
    window.location.href="offline.html";
    }   
    admob.setOptions({publisherId: "ca-app-pub-7819299620890128/9086816578",
    adSize:               admob.AD_SIZE.SMART_BANNER,
    bannerAtTop:          false,
    autoShowBanner:       true
    });
    admob.createBannerView();       
    app.receivedEvent('deviceready');
    },
    // Update DOM on a Received Event
    receivedEvent: function(id) {
        var parentElement = document.getElementById(id);
        var listeningElement = parentElement.querySelector('.listening');
        var receivedElement = parentElement.querySelector('.received');

        listeningElement.setAttribute('style', 'display:none;');
        receivedElement.setAttribute('style', 'display:block;');      
    }
};

/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */
var app = {
    // Application Constructor
    initialize: function() {
        this.bindEvents();
    },
    // Bind Event Listeners
    //
    // Bind any events that are required on startup. Common events are:
    // 'load', 'deviceready', 'offline', and 'online'.
    bindEvents: function() {
        document.addEventListener('deviceready', this.onDeviceReady, false);
        document.addEventListener("offline", function() {window.location.href="offline.html";}, false);
    },
    // deviceready Event Handler
    //
    // The scope of 'this' is the event. In order to call the 'receivedEvent'
    // function, we must explicitly call 'app.receivedEvent(...);'
    onOffline: function() {
    window.location.href="offline.html";
    },
    onDeviceReady: function() {
    document.addEventListener("offline", function() {window.location.href="offline.html";}, false);
    if((navigator.connection.type).toUpperCase() != "NONE" &&
       (navigator.network.connection.type).toUpperCase() != "UNKNOWN") {
    //ONLINE
    window.location.href="http://kraftstoffbilliger.de/m3/";       
    } else {
    window.location.href="offline.html";
    }   
    admob.setOptions({publisherId: "ca-app-pub-7819299620890128/9086816578",
    adSize:               admob.AD_SIZE.SMART_BANNER,
    bannerAtTop:          false,
    autoShowBanner:       true
    });
    admob.createBannerView();       
    app.receivedEvent('deviceready');
    },
    // Update DOM on a Received Event
    receivedEvent: function(id) {
        var parentElement = document.getElementById(id);
        var listeningElement = parentElement.querySelector('.listening');
        var receivedElement = parentElement.querySelector('.received');

        listeningElement.setAttribute('style', 'display:none;');
        receivedElement.setAttribute('style', 'display:block;');      
    }
};

Create index.js