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/*****
Image Cross Fade Redux
Version 1.0
Last revision: 02.15.2006
steve@slayeroffice.com
Please leave this notice intact.
Rewrite of old code found here: http://slayeroffice.com/code/imageCrossFade/index.html
*****/
window.addEventListener?window.addEventListener("load",so_init,false):window.attachEvent("onload",so_init);
var d=document, imgs = new Array(), zInterval = null, current=0, pause=false;
var myDivWidth, myDivHeight;
function toggleStartStop() {
mydiv = d.getElementById("rotator");
if (mydiv) {
imgs = mydiv.getElementsByTagName("img");
if (imgs[0]) {
if (pause == true) {
pause = false;
setTimeout(so_xfade,50);
} else {
pause = true;
setTimeout(checkIfPiclensIsRunning,1000);
}
}
}
}
function checkIfPiclensIsRunning() {
if (PicLensLite.piclensIsRunning_ == true) {
setTimeout(checkIfPiclensIsRunning,1000);
} else {
toggleStartStop();
}
}
function so_init() {
if(!d.getElementById || !d.createElement)return;
mydiv = d.getElementById("rotator");
if (mydiv) {
imgs = mydiv.getElementsByTagName("img");
// set the 4:3 height
myDivWidth = mydiv.offsetWidth;
myDivHeight = Math.round(myDivWidth * 0.75);
mydiv.style.height = myDivHeight + 'px';
myNoImgDiv = d.getElementById("noImages");
if (myNoImgDiv) {
myNoImgDivW = myNoImgDiv.offsetWidth;
myNoImgDivH = Math.round(myNoImgDivW * 0.75);
myNoImgDiv.style.height = myNoImgDivH + 'px';
}
if (imgs[0]) {
for(i=0;i 1000) {
fudgeFactor = 0.01;
} else {
fudgeFactor = 0.1;
}
// find the w&h multiplier, round down.
var widthMultiplier = (myDivWidth-2) / iImageWidth;
var heightMultiplier = (myDivHeight-2) / iImageHeight;
var wMulti = widthMultiplier.toFixed(2) - fudgeFactor;
var hMulti = heightMultiplier.toFixed(2);
// pick the lesser of the two.
if (wMulti > hMulti) {
var multiplier = hMulti;
var nShift = 2;
} else {
var multiplier = wMulti;
var nShift = 2;
}
imgs[i].width = Math.floor(iImageWidth * multiplier);
imgs[i].height = Math.floor(iImageHeight * multiplier);
wWhiteSpace = myDivWidth - imgs[i].width;
hWhiteSpace = myDivHeight - imgs[i].height;
topSpace = Math.round(hWhiteSpace/2)+2;
leftSpace = Math.round(wWhiteSpace/2)-5;
imgs[i].style.display = "none";
imgs[i].style.position = "absolute";
imgs[i].style.top = topSpace + "px";
imgs[i].style.left = leftSpace + "px";
}
imgs[0].style.display = "block";
imgs[0].xOpacity = .99;
setTimeout(so_xfade,4000);
}
}
}
function so_xfade() {
var cOpacity = imgs[current].xOpacity;
var nIndex = imgs[current+1]?current+1:0;
var nOpacity = imgs[nIndex].xOpacity;
if (pause) {
return;
}
cOpacity-=.05;
nOpacity+=.05;
imgs[nIndex].style.display = "block";
imgs[current].xOpacity = cOpacity;
imgs[nIndex].xOpacity = nOpacity;
setOpacity(imgs[current]);
setOpacity(imgs[nIndex]);
if(cOpacity<=0) {
imgs[current].style.display = "none";
current = nIndex;
setTimeout(so_xfade,4000);
} else {
setTimeout(so_xfade,50);
}
function setOpacity(obj) {
if(obj.xOpacity>.99) {
obj.xOpacity = .99;
return;
}
obj.style.opacity = obj.xOpacity;
obj.style.MozOpacity = obj.xOpacity;
obj.style.filter = "alpha(opacity=" + (obj.xOpacity*100) + ")";
}
}