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Deutschland	Berlin
Frankreich	Paris
Spanien	Madrid

// H5P iframe Resizer (function () {

 if (!window.postMessage || !window.addEventListener || window.h5pResizerInitialized) {
   return; // Not supported
 }
 window.h5pResizerInitialized = true;

 // Map actions to handlers
 var actionHandlers = {};

 /**
  * Prepare iframe resize.
  *
  * @private
  * @param {Object} iframe Element
  * @param {Object} data Payload
  * @param {Function} respond Send a response to the iframe
  */
 actionHandlers.hello = function (iframe, data, respond) {
   // Make iframe responsive
   iframe.style.width = '100%';

   // Bugfix for Chrome: Force update of iframe width. If this is not done the
   // document size may not be updated before the content resizes.
   iframe.getBoundingClientRect();

   // Tell iframe that it needs to resize when our window resizes
   var resize = function () {
     if (iframe.contentWindow) {
       // Limit resize calls to avoid flickering
       respond('resize');
     }
     else {
       // Frame is gone, unregister.
       window.removeEventListener('resize', resize);
     }
   };
   window.addEventListener('resize', resize, false);

   // Respond to let the iframe know we can resize it
   respond('hello');
 };

 /**
  * Prepare iframe resize.
  *
  * @private
  * @param {Object} iframe Element
  * @param {Object} data Payload
  * @param {Function} respond Send a response to the iframe
  */
 actionHandlers.prepareResize = function (iframe, data, respond) {
   // Do not resize unless page and scrolling differs
   if (iframe.clientHeight !== data.scrollHeight ||
       data.scrollHeight !== data.clientHeight) {

     // Reset iframe height, in case content has shrinked.
     iframe.style.height = data.clientHeight + 'px';
     respond('resizePrepared');
   }
 };

 /**
  * Resize parent and iframe to desired height.
  *
  * @private
  * @param {Object} iframe Element
  * @param {Object} data Payload
  * @param {Function} respond Send a response to the iframe
  */
 actionHandlers.resize = function (iframe, data) {
   // Resize iframe so all content is visible. Use scrollHeight to make sure we get everything
   iframe.style.height = data.scrollHeight + 'px';
 };

 /**
  * Keyup event handler. Exits full screen on escape.
  *
  * @param {Event} event
  */
 var escape = function (event) {
   if (event.keyCode === 27) {
     exitFullScreen();
   }
 };

 // Listen for messages from iframes
 window.addEventListener('message', function receiveMessage(event) {
   if (event.data.context !== 'h5p') {
     return; // Only handle h5p requests.
   }

   // Find out who sent the message
   var iframe, iframes = document.getElementsByTagName('iframe');
   for (var i = 0; i < iframes.length; i++) {
     if (iframes[i].contentWindow === event.source) {
       iframe = iframes[i];
       break;
     }
   }

   if (!iframe) {
     return; // Cannot find sender
   }

   // Find action handler handler
   if (actionHandlers[event.data.action]) {
     actionHandlers[event.data.action](iframe, event.data, function respond(action, data) {
       if (data === undefined) {
         data = {};
       }
       data.action = action;
       data.context = 'h5p';
       event.source.postMessage(data, event.origin);
     });
   }
 }, false);

 // Let h5p iframes know we're ready!
 var iframes = document.getElementsByTagName('iframe');
 var ready = {
   context: 'h5p',
   action: 'ready'
 };
 for (var i = 0; i < iframes.length; i++) {
   if (iframes[i].src.indexOf('h5p') !== -1) {
     iframes[i].contentWindow.postMessage(ready, '*');
   }
 }

})();

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