var imageIndex = 0;   
var tourScript = "sequence2";
var sequence = 2;
var imageLength = eval(tourScript + "_imageFile").length-1;
var imageFile;
var positionIndex = 1; 
var Pos_File;
var flagOne = 0;

function displayImages() { 
//alert("DISPLAY IMAGES");
    if (document.images) {
      imageLength = eval(tourScript + "_imageFile").length-1;
      imageFile = eval(tourScript + "_imageFile[imageIndex]");
      flagOne = 1;   
      document.nowshowing.src = imageFile; 
      Pos_File = positionFile[positionIndex];
      document.position_now.src = Pos_File;

   }
}


function displayTitle()  {
//alert("DISPLAY TITLE");
   if (document.images) {
      if (flagOne == 1) {
         document.displaycomments.comments.value = eval(tourScript + "_imageComments")
         [imageIndex];
         }
      }
}

function turnLeft()  {
   imageIndex--;
   if (imageIndex < 0)  { imageIndex = imageLength };
   displayImages();
}

function turnRight()  {
   imageIndex++;
   if (imageIndex > imageLength)  { imageIndex = 0 };
   displayImages();
}

function goForward()  {
   sequence++;
   
   if (sequence > 5)  { sequence-- };
   tourScript = "sequence"+ sequence;
   positionIndex=sequence-1;
   imageIndex = 0;
   displayImages();
}

function goReverse()  {
   sequence--;
      if (sequence < 1)  { sequence++ };
      tourScript = "sequence"+ sequence;
      positionIndex=sequence-1;
      imageIndex = 0;
   displayImages();
}