//
// Set slideShowSpeed (milliseconds)
//
var slideShowSpeed = 20000;
//
// Duration of crossfade (seconds)
//
var crossFadeDuration = 3;
//
// Array to specify slides
//
var Slides = new Array ();
var SlideTitle = new Array ();
var SlideTimeout = new Array ();
var SlideInactive = new Array ();
//
// Debugging hooks
//
var debugSlideShow = 0;
var debugSlideShow_init_done = 0;
var SlideShowSpeedMultiplier = 1;
// ================================
// don't edit below this line
// ================================
var slideshow_timer;
var slide_no = 0;
function setSlideShowSpeed(x){
slideShowSpeed = x;
}
function setSlideSpeed(url, timeout)
{
if (timeout != undefined && timeout != "") {
SlideTimeout[url] = timeout;
}
}
function resetSlideSpeed(url)
{
delete SlideTimeout[url];
}
function addSlide(url, title, timeout, inactive) {
Slides.push(url);
if (title != undefined && title != "") {
SlideTitle[url]=title;
}
if (timeout != undefined && timeout != "") {
setSlideSpeed(url,timeout);
}
if (inactive != undefined && inactive != 0) {
SlideInactive[url] = 1;
}
}
function nextSlide()
{
var looped_once = 0;
/*
* Move to the next slide, wrapping around to the beginning as needed.
*/
do {
slide_no = slide_no + 1;
if (slide_no > (Slides.length-1)) {
slide_no=0;
if (looped_once != 0) {
alert("Excessive looping in nextSlide()");
slide_no = 0;
return;
}
looped_once = 1;
}
} while (SlideInactive[Slides[slide_no]] != undefined && SlideInactive[Slides[slide_no]] != 0);
}
function prevSlide()
{
var looped_once = 0;
/*
* Move to the previous slide, wrapping around to the end as needed.
*/
do {
slide_no = slide_no - 1;
if (slide_no < 0) {
slide_no = Slides.length-1;
if (looped_once != 0) {
alert("Excessive looping in prevSlide()");
slide_no = Slides.length-1;
return;
}
looped_once = 1;
}
} while (SlideInactive[Slides[slide_no]] != undefined && SlideInactive[Slides[slide_no]] != 0);
}
function showSlide(url)
{
/*
* Set the contents of the frame/iframe named main_frame to the
* correct URI.
*/
slideshow_frame.location.href = url;
/*
* Update the debug info.
*/
updateSlideShowDebug();
//
// The following code is for when we use frameset/frame and have the
// optional titles being displayed by this routine.
//
// if ( SlideTitle[url] != undefined ) {
// parent.title_frame.document.open();
// parent.title_frame.document.write("\n");
// parent.title_frame.document.write("\n");
// parent.title_frame.document.write("\n");
// parent.title_frame.document.write("\n");
// parent.title_frame.document.write("
");
// parent.title_frame.document.close();
// parent.document.getElementById("dco_frames").rows = "0, *, 35";
// }
}
function runSlideShow()
{
var timeout = slideShowSpeed;
var url = Slides[slide_no];
/*
* Compute the timeout.
*/
if (SlideTimeout[url] != undefined && SlideTimeout[url] != "" && SlideTimeout[url] > 0) {
timeout = SlideTimeout[url];
}
/*
* Show the slide, along with its title.
*/
showSlide(url);
/*
* Move to the next slide so that it displays next time.
*/
nextSlide();
/*
* Register a timeout to take us to the next slide.
*/
slideshow_timer = setTimeout('runSlideShow()', timeout*SlideShowSpeedMultiplier);
}
function startSlideShow()
{
/*
* Make sure we do not end up with two timeouts scheduled.
*/
clearTimeout(slideshow_timer);
/*
* If we are debugging...
*/
if (debugSlideShow != 0) {
/*
* ...make sure we have initialized debugging.
*/
SlideShowDebugInit();
}
/*
* Check to make sure we have at least one active frame.
*/
var num_active = 0;
for (var i in Slides)
{
var url = Slides[i];
if (SlideInactive[url] == undefined || SlideInactive[url] == 0) {
num_active = num_active + 1;
}
}
if (num_active==0) {
alert("No slides active");
} else {
if (debugSlideShow != 0) {
/*
* Register a short timeout to start things, so that the debug window can come up.
*/
slideshow_timer = setTimeout('runSlideShow()', 2000);
} else {
/*
* Run the slide show.
*/
runSlideShow();
}
}
}
function stopSlideShow()
{
clearTimeout(slideshow_timer);
}
function scrollSlideShow(evt)
{
/*
* Avoid the multiple timeout issue.
*/
clearTimeout(slideshow_timer);
msg = 'on' + evt.type + ' event fired by ' + '"' + evt.keyCode + '"';
if (evt.keyCode == 39) { // Right
nextSlide();
msg = msg + " scrolled Right";
} else if (evt.keyCode == 37) { // Left
prevSlide();
msg = msg + " scrolled Right";
}
alert(msg);
runSlideShow();
}