// CSS Photo Shuffler v1.0 by
// Carl Camera
// http://iamacamera.org //
var gblPhotoShufflerDivId = "photodiv";
var gblPhotoShufflerImgId = "photoimg"; var gblImg = new Array(
"images/sapiama_header.jpg",
"images/sapiama_header10.jpg",
"images/sapiama_header8.jpg",
"images/sapiama_header12.jpg",
"images/sapiama_header7.jpg",
"images/sapiama_header14.jpg",
"images/sapiama_header11.jpg",
"images/sapiama_header13.jpg"
);
var gblPauseSeconds = 7.25;
var gblFadeSeconds = .85;
var gblRotations = 1;
var gblDeckSize = gblImg.length;
var gblOpacity = 100;
var gblOnDeck = 0;
var gblStartImg;
var gblImageRotations = gblDeckSize * (gblRotations+1);
window.onload = photoShufflerLaunch;
function photoShufflerLaunch()
{
var theimg = document.getElementById(gblPhotoShufflerImgId);
gblStartImg = theimg.src; document.getElementById(gblPhotoShufflerDivId).style.backgroundImage='url(' + gblImg[gblOnDeck] + ')';
setTimeout("photoShufflerFade()",gblPauseSeconds*1000);
}
function photoShufflerFade()
{
var theimg = document.getElementById(gblPhotoShufflerImgId);
var fadeDelta = 100 / (30 * gblFadeSeconds);
if (gblOpacity < 2*fadeDelta ) {
gblOpacity = 100;
if (gblImageRotations < 1) return;
photoShufflerShuffle();
setTimeout("photoShufflerFade()",gblPauseSeconds*1000);
}
else
{
gblOpacity -= fadeDelta;
setOpacity(theimg,gblOpacity);
setTimeout("photoShufflerFade()",30); // 1/30th of a second
}
}
function photoShufflerShuffle()
{
var thediv = document.getElementById(gblPhotoShufflerDivId);
var theimg = document.getElementById(gblPhotoShufflerImgId);
theimg.src = gblImg[gblOnDeck];
setOpacity(theimg,100);
gblOnDeck = ++gblOnDeck % gblDeckSize;
if (--gblImageRotations < 1)
{
gblImg[gblOnDeck] = gblStartImg;
}
thediv.style.backgroundImage='url(' + gblImg[gblOnDeck] + ')';
}
function setOpacity(obj, opacity) {
opacity = (opacity == 100)?99.999:opacity;
obj.style.filter = "alpha(opacity:"+opacity+")";
obj.style.KHTMLOpacity = opacity/100;
obj.style.MozOpacity = opacity/100;
obj.style.opacity = opacity/100;
}