title: How to remove previous infobubble, if I click different marker in HERE Map?
body: <p>Here below is my code to add an infobubble. I want to remove the current infobubble previously after click(tap) on a different marker.</p>
  
  <pre><code>function addInfoBubble(map) 
      {
      var group = new H.map.Group();
      map.addObject(group);
      // add 'tap' event listener, that opens info bubble, to the group
      group.addEventListener('tap', function(evt) {
      // event target is the marker itself, group is a parent event target
      // for all objects that it contains
      var bubble = new H.ui.InfoBubble(evt.target.getPosition(), {
      // read custom data
      content: evt.target.getData()
      });
      // show info bubble
      ui.addBubble(bubble);
      }, false);
      }
  </code></pre>
  
  <p>Where should I place the code line <code>ui.removeBubble(bubble)</code> if I click on a different marker?</p>