function initFullscreen(){
  Room = "dumpfm";
  refresh()
  ImageCache = []
  SeenImages = {}
}

function scanMessagesForImages(messages){
  for(var m=0; m<messages.length; m++) {
    var images = getImagesAsArray(messages[m].content)
    for (var i = 0; i<images.length; i++){
      NextImage = new Image()
      NextImage.onload = displayImage
      NextImage.src = images[i]
    }
  }
}

function displayImage(){
  $("#big-image").html('<img src="'+this.src+'">')
}

function refresh() {
  var onSuccess = function(json) {
    try {
      if (json.messages && json.messages.length)
        scanMessagesForImages(json.messages);
      Timestamp = json.timestamp;
    } catch(e) {
      
    }
    
  setTimeout(refresh, 1000);
  };

  var onError = function(resp, textStatus, errorThrown) {
    setTimeout(refresh, 1000);
  };

  $.ajax({
    type: 'GET',
    timeout: 5000,
    url: '/refresh',
    data: { 'room': Room, 'since': Timestamp },
    cache: false,
    dataType: 'json',
    success: onSuccess,
    error: onError
  });
}