function change_image() {

  
}

  function image_changed(new_image_url){
  var object_image = document.getElementById('image');
    
    try{
       object_image.src = new_image_url;
    }catch(e) {}
  }
  
  
   function link_changed(new_link_url){
      var object_image_link = document.getElementById('image_link');
    
    try{
       object_image_link.href = new_link_url;
    }catch(e) {}
  }