// added by Greg Bray to allow for slideshow to be paused
var pauseSlideShow = 0;
function setPause() {
 pauseSlideShow=1;
}
 
function clearPause() {
 pauseSlideShow=0;
}
// end added part
 
// Browser Slide-Show script.
// With image cross fade effect for those browsers that support it.
// Script copyright (C) 2004 www.cryer.co.uk.
// Script is free to use provided this copyright header is included.
var slideCache = new Array();
function RunSlideShow(pictureName,imageFiles,displaySecs,listLength)
{
  if (pauseSlideShow == 0){
      if (manualPictures[pictureName] == null) {
       imageFiles = imageFiles;
      } else {
       imageFiles = manualPictures[pictureName];
    }
   var imageSeparator = imageFiles.indexOf(";");
   var nextImage = imageFiles.substring(0,imageSeparator);
   if (document.all)
   {
     document.getElementById(pictureName).style.filter="blendTrans(duration=2)";
     document.getElementById(pictureName).filters.blendTrans.Apply();
   }
   document.getElementById(pictureName).src = nextImage;
   if (document.all)
   {
     document.getElementById(pictureName).filters.blendTrans.Play();
   }
   var futureImages= imageFiles.substring(imageSeparator+1,imageFiles.length)
     + ';' + nextImage;
  
   manualPictures[pictureName] =
     imageFiles.substring(imageSeparator+1,imageFiles.length)
     + ';' + nextImage;  // sets array for manual forward button to start in same order
 
   // create a list of images in reverse order for use by previous button 
   reversePictureList = "";
   tempList = imageFiles + ';flag';
   x = 1;
   while (tempList.indexOf(";") != -1){
    imageSeparator = tempList.indexOf(";");
  if (x == 1) {
   reversePictureList = tempList.substring(0,imageSeparator);
  }else{
   reversePictureList = tempList.substring(0,imageSeparator) + ';' + reversePictureList;
  }
  tempList = tempList.substring(imageSeparator+1,tempList.length);
  x++;
   }
   reversePictures[pictureName] = reversePictureList;
 
   setTimeout("RunSlideShow('"+pictureName+"','"+futureImages+"',"+displaySecs+")",
     displaySecs*1000);
  
   // Cache the next image to improve performance.
   imageSeparator = futureImages.indexOf(";");
   nextImage = futureImages.substring(0,imageSeparator);
   if (slideCache[nextImage] == null) {
     slideCache[nextImage] = new Image;
     slideCache[nextImage].src = nextImage;
   }
 } // end if pauseslideshow  
}
 

// Manual Slide-Show script. With image cross fade effect for those browsers
// that support it.
// Script copyright (C) 2004 www.cryer.co.uk.
// Script is free to use provided this copyright header is included.
var manualPictures = new Array();
function NextImageSlide(pictureName,imageFiles)
{
  // Ensure picture list primed.
  if (manualPictures[pictureName] == null) {
    manualPictures[pictureName] = imageFiles;
  } else {
    imageFiles = manualPictures[pictureName];
  }
  var imageSeparator = imageFiles.indexOf(";");
  var nextImage = imageFiles.substring(0,imageSeparator);
  if (document.all)
  {
    document.getElementById(pictureName).style.filter="blendTrans(duration=2)";
    document.getElementById(pictureName).filters.blendTrans.Apply();
  }
  document.getElementById(pictureName).src = nextImage;
  if (document.all)
  {
    document.getElementById(pictureName).filters.blendTrans.Play();
  }
  manualPictures[pictureName] =
    imageFiles.substring(imageSeparator+1,imageFiles.length)
    + ';' + nextImage;
   
  // create a list of images in reverse order for use by previous button 
  reversePictureList = "";
  tempList = imageFiles + ';flag';
  x = 1;
  while (tempList.indexOf(";") != -1){
   imageSeparator = tempList.indexOf(";");
 if (x == 1) {
  reversePictureList = tempList.substring(0,imageSeparator);
 }else{
  reversePictureList = tempList.substring(0,imageSeparator) + ';' + reversePictureList;
 }
 tempList = tempList.substring(imageSeparator+1,tempList.length);
 x++;
  }
  reversePictures[pictureName] = reversePictureList;
}
 
// Manual Slide-Show script. With image cross fade effect for those browsers
// that support it.
// Script copyright (C) 2004 www.cryer.co.uk.
// Script is free to use provided this copyright header is included.
 
// Adapted by Greg Bray to allow for back button instead of forward button
var reversePictures = new Array();
function PreviousImageSlide(pictureName,imageFiles,listLength)
{ 
  // Ensure picture list primed.
  if (reversePictures[pictureName] == null) {
    reversePictures[pictureName] = imageFiles;
  } else {
    imageFiles = reversePictures[pictureName];
 listLength = listLength - 1;
  }
  var imageSeparator = imageFiles.indexOf(";");
  var nextImage = imageFiles.substring(0,imageSeparator);
  if (document.all)
  {
    document.getElementById(pictureName).style.filter="blendTrans(duration=2)";
    document.getElementById(pictureName).filters.blendTrans.Apply();
  }
  document.getElementById(pictureName).src = nextImage;
  if (document.all)
  {
    document.getElementById(pictureName).filters.blendTrans.Play();
  }
  reversePictures[pictureName] =
    imageFiles.substring(imageSeparator+1,imageFiles.length)
    + ';' + nextImage;
  
  // create a list of images in original order for use by forward button 
  reversePictureList = "";
  tempList = imageFiles + ';flag';
  x = 1;
  while (tempList.indexOf(";") != -1){
   imageSeparator = tempList.indexOf(";");
 if (x == 1) {
  reversePictureList = tempList.substring(0,imageSeparator);
 }else{
  reversePictureList = tempList.substring(0,imageSeparator) + ';' + reversePictureList;
 }
 tempList = tempList.substring(imageSeparator+1,tempList.length);
 x++;
  }
  manualPictures[pictureName] = reversePictureList;
}


// old code below
// Browser Slide-Show script.
// With image cross fade effect for those browsers that support it.
// Script copyright (C) 2004 www.cryer.co.uk.
// Script is free to use provided this copyright header is included.
//var slideCache = new Array();
//function RunSlideShow(pictureName,imageFiles,displaySecs)
//{
//  var imageSeparator = imageFiles.indexOf(";");
//  var nextImage = imageFiles.substring(0,imageSeparator);
//  if (document.all)
//  {
//    document.getElementById(pictureName).style.filter="blendTrans(duration=2)";
//    document.getElementById(pictureName).filters.blendTrans.Apply();
//  }
//  document.getElementById(pictureName).src = nextImage;
//  if (document.all)
//  {
//    document.getElementById(pictureName).filters.blendTrans.Play();
//  }
//  var futureImages= imageFiles.substring(imageSeparator+1,imageFiles.length)
//    + ';' + nextImage;
//  setTimeout("RunSlideShow('"+pictureName+"','"+futureImages+"',"+displaySecs+")",
//    displaySecs*1000);
//  // Cache the next image to improve performance.
//  imageSeparator = futureImages.indexOf(";");
//  nextImage = futureImages.substring(0,imageSeparator);
//  if (slideCache[nextImage] == null) {
//    slideCache[nextImage] = new Image;
//    slideCache[nextImage].src = nextImage;
//  }
//}