/*=========================*/
/*== SLIDE SHOW ==*/
/*== version 0.57 ==*/
/*== Updated 12 Dec 2006 ==*/
/*=========================*/
var SLIDE_SHOW = 0;
var RANDOM_PHOTO = 1;
var slideshowContainer;
var sSlide;
var sCaption;
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 = YD.get(slideshowContainerId);
} 
if (!slideshowContainer) {
return false;
} 
if (typeof(slideshowUrl) == "undefined" || typeof(slideshowUrl) != "string") {
return false;
} else {
slideshowUrl = /(?:http:\/\/[^\/]+)?(\/\S+)/.exec(slideshowUrl)[1];
} 
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>';
} 
sSlide = YD.get('ssSlide');
sCaption = YD.get('ssCaption'); 
if (slidesClickable) {
sSlide.style.cursor = 'pointer';

if (firstSlideUrl != blank.src) {
ssAddSlideClick(slideshowUrl);
}
} 
ssSlides = [];
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 = [];
postArray['TemplateID'] = '8';
postArray['origin'] = slideshowUrl;
ajax_query(slideshowHandler, '/homepage/templatechange.mg', postArray, true);
}
} 

function slideshowHandler(response)
{
if (!slideSourceIsGallery) {
if (tmpCookie && tmpCookie != "") {
setCookie('Template', tmpCookie, 30, '/', 'smugmug.com');
} else {
deleteCookie("Template", "/", "smugmug.com");
}
} 
var re = /imageID\[\d+\] = "\d+";/g;
var re2 = /width\[\d+\] = "\d+";/g;
var re3 = /height\[\d+\] = "\d+";/g;
var re4 = /caption\[\d+\] = ".*";/g; 
s = response.match(re); 
w = response.match(re2);
h = response.match(re3);
c = response.match(re4); 
var oSlide; 
for (i = 0; i < s.length; i++) {
oSlide = {}; 
temp = s[i].split(/"/);
oSlide.ImageId = temp[1];
oSlide.File = 'http://upload.smugmug.com/photos/toolthumbs.mg?ImageID=' + temp[1] + '&tool=slideshowXL&winHeight=' + photoHeight + '&winWidth=' + photoWidth;
oSlide.Gallery = slideshowUrl + '/1/' + oSlide.ImageId; 
temp = h[i].split(/"/);
oSlide.Height = temp[1]; 
temp = w[i].split(/"/);
oSlide.Width = temp[1]; 
temp = c[i].split(/"/);
oSlide.Caption = temp[1]; 
oSlide.Loaded = false;

if ((oSlide.Width > photoWidth) || (oSlide.Height > photoHeight)) {
if (oSlide.Width >= oSlide.Height) {
oSlide.Height = Math.round((oSlide.Height / oSlide.Width) * photoWidth);
oSlide.Width = photoWidth;
} else {
oSlide.Width = Math.round((oSlide.Width / oSlide.Height) * photoHeight);
oSlide.Height = photoHeight;
}
} 
ssSlideTotal = ssSlides.push(oSlide);
} 
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) {
YD.setStyle(sSlide, 'opacity', (opacity / 100));
} else {
YD.setStyle(sSlide, 'opacity', '.99'); // to prevent flashing in mozilla browsers
}

// only affects Win IE
YD.setStyle(sSlide, 'filter', 'alpha(opacity=' + opacity + ')'); 
if (sCaption) {
YD.setStyle(sCaption, 'opacity', sSlide.style.opacity);
YD.setStyle(sCaption, 'filter', sSlide.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;
YD.setStyle(sSlide, 'backgroundImage', 'url(' + ssSlides[newSlide].File + ')'); 
if (resizeToPhoto)
{
document.images['ssSlide'].height = ssSlides[newSlide].Height;
document.images['ssSlide'].width = ssSlides[newSlide].Width;
} 
if (slidesClickable) {
ssAddSlideClick(ssSlides[newSlide].Gallery);
}

if (slideCaptions) {
YD.get('ssCaption').innerHTML = ssSlides[newSlide].Caption;
} 
ssPrepSlide(newSlide < ssSlideTotal ? newSlide + i : 1);
ssOldSlide = newSlide;
} else {
ssPrepSlide(newSlide);
ssSlideSwap(i);
}
} 

function ssAddSlideClick(sUrl) {
YE.purgeElement(sSlide, false, 'click');
YE.addListener(sSlide, 'click', function() {
location.href = sUrl;
})
} 

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()
{
YD.setStyle('ssPause', 'display', 'none');
YD.setStyle('ssPlay', 'display', 'inline');
ssPauseSlideshow();
} 

function resumeSlideshow()
{
YD.setStyle('ssPause', 'display', 'inline');
YD.setStyle('ssPlay', '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 setCookie(name, value, expires, path, domain, secure) {
var today = new Date();
today.setTime( today.getTime() ); 
if (expires) {
expires = expires * 1000 * 60 * 60 * 24;
} 
var expires_date = new Date(today.getTime() + (expires)); 
document.cookie = name + '='+escape(value) +
((expires) ? ';expires=' + expires_date.toGMTString() : '') +
((path) ? ';path=' + path : '') +
((domain) ? ';domain=' + domain : '') +
((secure) ? ';secure' : '');
} 

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";
}
} 

function hasPath(sPath)
{
re = new RegExp("\/" + sPath + "(\/|$)");
return re.test(window.location)
}