function delHover() {
imgTags = document.getElementsByTagName("img");
for (i=0; i<imgTags.length; i++) {
imgTags[i].title = "";
imgTags[i].alt = "";
}
}

/*===========================*/
/*== SLIDE SHOW            ==*/
/*== version 0.54          ==*/
/*== Updated 18 April 2006 ==*/
/*===========================*/
var SLIDE_SHOW = 0;
var RANDOM_PHOTO = 1;
var slideshowContainer;
var slide;
var caption;
var ssSlides;
var ssSlideTotal;
var ssSlideTimer;
var ssOldSlide;
var ssFadeTimer;
var ssFade;
var ssTimerId;
var blank;


function PrepSlideEnvironment()
{
  tmpCookie = getCookie("Template");

  blank = new Image();
  blank.src = "/img/spacer.gif";

  if (typeof(slideshowType) == "undefined" || (slideshowType != SLIDE_SHOW && slideshowType != RANDOM_PHOTO))
    slideshowType = SLIDE_SHOW;

  if (slideshowType == RANDOM_PHOTO)
    randomSlides = true;

  if (typeof(slideshowContainerId) == "undefined")
    return false
  else if (typeof(slideshowContainerId) == "string")
    slideshowContainer = document.getElementById(slideshowContainerId);

  if (!slideshowContainer)
    return false;

  if (typeof(slideshowUrl) == "undefined" || typeof(slideshowUrl) != "string")
    return false;
  else
    slideshowUrl = /(http:\/\/[^\/]+)*(\/.*)/.exec(slideshowUrl)[2];

  if (/\/gallery\/[0-9]+/.test(slideshowUrl))
    slideSourceIsGallery = true;
  else
    slideSourceIsGallery = false;

  if (typeof(slideHeight) == "undefined" || isNaN(slideHeight))
    slideHeight = "200";

  if (typeof(slideWidth) == "undefined" || isNaN(slideWidth))
    slideWidth = "300";

  if (typeof(photoHeight) == "undefined" || isNaN(photoHeight))
    photoHeight = slideHeight;

  if (typeof(photoWidth) == "undefined" || isNaN(photoWidth))
    photoWidth = slideWidth;

  if (typeof(slideDuration) == "undefined" || isNaN(slideDuration))
    slideDuration = 3;

  if (typeof(firstSlideUrl) == "undefined" || typeof(firstSlideUrl) != "string")
    firstSlideUrl = blank.src;

  if (typeof(showSlideTransition) == "undefined" || typeof(showSlideTransition) != "boolean")
    showSlideTransition = true;
   
  if (typeof(resizeToPhoto) == "undefined" || typeof(resizeToPhoto) != "boolean")
    resizeToPhoto = true;

  if (typeof(quickStart) == "undefined" || typeof(quickStart) != "boolean")
    quickStart = true;

  if (typeof(randomSlides) == "undefined" || typeof(randomSlides) != "boolean")
    randomSlides = false;

  if (typeof(slideControls) == "undefined" || typeof(slideControls) != "boolean")
    slideControls = false;

  if (typeof(slideCaptions) == "undefined" || typeof(slideCaptions) != "boolean")
    slideCaptions = false;

  if (typeof(slidesClickable) == "undefined" || typeof(slidesClickable) != "boolean")
    slidesClickable = false;

  return true;
}


function loadSlideshow()
{
  if (!PrepSlideEnvironment())
    return false;

  slideshowContainer.innerHTML = '<img src="http://www.smugmug.com/img/spacer.gif" alt="" id="ssSlide" height="' + slideHeight + '" width="' + slideWidth + '" style="opacity: .99; background-image: url(' + firstSlideUrl + '); background-repeat: no-repeat; background-position: center;" />';

  if (slideCaptions)
    slideshowContainer.innerHTML += '<div id="ssCaption"></div>';

  if (slideControls)
    slideshowContainer.innerHTML += '<div id="ssControl"><a title="Previous Slide" id="ssPrev" class="ssBtn" href="javascript: void(0);" onclick="prevSlide();"><img src="/img/spacer.gif" border="0" /></a><a title="Next Slide" id="ssNext" class="ssBtn" href="javascript: void(0);" onclick="nextSlide();"><img src="/img/spacer.gif" border="0" /></a><a title="Pause Slideshow" id="ssPause" class="ssBtn" href="javascript: void(0);" onclick="pauseSlideshow();"><img src="/img/spacer.gif" border="0" /></a><a title="Resume Slideshow" id="ssPlay" class="ssBtn" href="javascript: void(0);" onclick="resumeSlideshow();"><img src="/img/spacer.gif" border="0" /></a></div>';

  slide = document.getElementById('ssSlide');
  caption = document.getElementById('ssCaption');

  ssSlides = new Array(null);
  ssSlideTotal = 0;
  ssSlideTimer = 0;
  ssOldSlide = 0;
  ssFadeTimer = 100;
  ssFade = "out";  

  if (slideSourceIsGallery)
    ajax_query(slideshowHandler, '/photos/sspopup.mg?AlbumID=' + /\/gallery\/([0-9]+)/.exec(slideshowUrl)[1], null, true);
  else {
    var postArray = new Array();
    postArray['TemplateID'] = '8';
    postArray['origin'] = slideshowUrl;
    ajax_query(slideshowHandler, '/homepage/templatechange.mg', postArray, true);
  }
}


function slideshowHandler(response)
{
  if (!slideSourceIsGallery) {
    if (tmpCookie && tmpCookie != "") {
      var postArray = new Array();
      postArray['TemplateID'] = tmpCookie;
      postArray['origin'] = slideshowUrl;
      ajax_query(function(){}, '/homepage/templatechange.mg', postArray, true);
    }
    else
      deleteCookie("Template", "/", "smugmug.com");
  }

  var re = /imageID\[\d+\] = "\d+";/g;
  var re2 = /width\[\d+\] = "\d+";/g;
  var re3 = /height\[\d+\] = "\d+";/g;

  //Thanks Mika Majakorpi for the Caption support!
  var re4 = /caption\[\d+\] = "[\S ]*";/g;

  s = response.match(re); 
  w = response.match(re2);
  h = response.match(re3);
  c = response.match(re4);

  var slide;

  for (i = 0; i < s.length; i++)
  {
    slide = new Object;

    temp = s[i].split(/"/);
    slide.ImageId = temp[1];
    slide.File = 'http://upload.smugmug.com/photos/toolthumbs.mg?ImageID=' + temp[1] + '&tool=slideshowXL&winHeight=' + photoHeight + '&winWidth=' + photoWidth;
    slide.Gallery = slideshowUrl + '/1/' + slide.ImageId;

    temp = h[i].split(/"/);
    slide.Height = temp[1];

    temp = w[i].split(/"/);
    slide.Width = temp[1];

    temp = c[i].split(/"/);
    slide.Caption = temp[1];

    slide.Loaded = false;
 
    if ((slide.Width > photoWidth) || (slide.Height > photoHeight))
    {
      if (slide.Width >= slide.Height)
      {
         slide.Height = Math.round((slide.Height / slide.Width) * photoWidth);
         slide.Width = photoWidth;
      }
      else
      {
        slide.Width = Math.round((slide.Width / slide.Height) * photoHeight);
        slide.Height = photoHeight;
      }
    }

    ssSlideTotal = ssSlides.push(slide);
  }

  ssSlideTotal -= 1;

  if (randomSlides)
  {
    ssSlides.shift();
    ssSlides.shuffle();
    ssSlides.unshift(0);
  }

  if (quickStart)
    ssSlideTimer = (slideDuration * 1000);

  ssPrepSlide(1);
  window.setTimeout("ssPrepSlide(2);", 0);
  window.setTimeout("ssPrepSlide(ssSlideTotal);", 0);

  if (slideshowType == SLIDE_SHOW)
    ssPlaySlideshow();
  else
    ssSlideSwap(1);
}


function ssPauseSlideshow()
{
  window.clearTimeout(ssTimerId);
  ssTimerId = null;
}


function ssResumeSlideshow()
{
  if (!ssTimerId)
    ssTimerId = window.setTimeout("ssPlaySlideshow()", 10);
}


function ssPrepSlide(prep)
{
  if (ssSlides[prep].Loaded == false)
  {
    ssSlides[prep].Image = new Image();
    ssSlides[prep].Image.src = ssSlides[prep].File;
    ssSlides[prep].Loaded = true;
  }   
}


function ssMoveSlide(i) {
  ssSlideTimer = 0;
  ssFadeTimer = 100;
  ssTransition(ssFadeTimer);
  ssFade = "out";
  ssSlideSwap(i);                       
}


function ssPlaySlideshow()
{
  if (ssSlideTimer >= (slideDuration * 1000))
  {                
    if (ssFade == 'out')
      ssTransition(ssFadeTimer -= 10);                   
 
    if (ssFadeTimer == 0)
    {
      ssSlideSwap(1);
      ssFade = 'in';
    }
 
    if (ssFade == 'in')
      ssTransition(ssFadeTimer += 10);
 
    if (ssFadeTimer == 100)
    {
      ssSlideTimer = 0;
      ssFade = 'out';
    }
  }
  else
    ssSlideTimer += 10;
 
  ssTimerId = window.setTimeout("ssPlaySlideshow()", 10);
}


function ssTransition(opacity)
{
  if (showSlideTransition)
  {
    if (opacity != 100)
      slide.style.opacity = (opacity / 100);   
 
    // one case where mozilla sucks: the image will flash if you turn opacuity up to 1 suddenly
    else
      slide.style.opacity = (.99);
 
    // only affects Win IE
    slide.style.filter = 'alpha(opacity=' + opacity + ')';

    if (caption) {
      caption.style.opacity = slide.style.opacity;
      caption.style.filter = slide.style.filter;
    }
  }
}


function ssSlideSwap(i)
{
  var newSlide = ssOldSlide + i;
 
  if (newSlide > ssSlideTotal)
    newSlide = 1;
 
  if (newSlide < 1)
    newSlide = ssSlideTotal;
 
  if (ssSlides[newSlide].Loaded != false)
  {
    document.images['ssSlide'].src = blank.src;
    slide.style.backgroundImage = 'url(' + ssSlides[newSlide].File + ')';
    if (resizeToPhoto)
    {
      document.images['ssSlide'].height = ssSlides[newSlide].Height;
      document.images['ssSlide'].width = ssSlides[newSlide].Width;
    }

    if (slidesClickable) {
      slide.style.cursor = 'pointer';
      addEvent(slide, 'click', function(){location.href=ssSlides[newSlide].Gallery;});
    }
    
    if (slideCaptions)
      document.getElementById('ssCaption').innerHTML = ssSlides[newSlide].Caption;

    ssPrepSlide(newSlide < ssSlideTotal ? newSlide + i : 1);
    ssOldSlide = newSlide;
  }
  else
  {
    ssPrepSlide(newSlide);
    ssSlideSwap(i);
  }
}


Array.prototype.shuffle = function()
{
  var len = this.length;
  var rand, temp, i;

  for (i = 0; i < len; i++)
  {
    rand = Math.floor(Math.random()*len);
    temp = this[i];
    this[i] = this[rand];
    this[rand] = temp;
  }
}


function pauseSlideshow()
{
  document.getElementById('ssPause').style.display = "none";
  document.getElementById('ssPlay').style.display = "inline";
  ssPauseSlideshow();
}


function resumeSlideshow()
{
  document.getElementById('ssPause').style.display = "inline";
  document.getElementById('ssPlay').style.display = "none";
  ssResumeSlideshow();
}


function prevSlide()
{
  pauseSlideshow();
  ssMoveSlide(-1);
}


function nextSlide()
{
  pauseSlideshow();
  ssMoveSlide(1);
}


function getCookie(name) {
  var start = document.cookie.indexOf(name + "=");
  var len = start + name.length + 1;
  
  if ((!start) && (name != document.cookie.substring(0, name.length)))
    return null;

  if (start == -1)
    return null;

  var end = document.cookie.indexOf(";", len);

  if (end == -1)
    end = document.cookie.length;

  return unescape(document.cookie.substring(len, end));
}


function deleteCookie(name, path, domain) {
  if (getCookie(name))
    document.cookie = name + "=" + ((path) ? ";path=" + path : "") + ((domain) ? ";domain=" + domain : "") + ";expires=Thu, 01-Jan-1970 00:00:01 GMT";
}