var CrossFadeDuration = 2;
var SlideShowSpeed = 3;

var Picture = new Array();
Picture[1] = 'images/img3.jpg';
Picture[2] = 'images/img4.jpg';


var Caption = new Array(); 
Caption[1] = "First caption.";
Caption[2] = "Second caption.";



SlideShowSpeed = SlideShowSpeed*500;
var inUseFlag = false;
var slideIMG = 1;
var curr = 1;
var nPix = Picture.length;

var preLoad = new Array();
for (i=1; i<nPix; i++)
{
preLoad[i] = new Image();
preLoad[i].src = Picture[i];
}


function control(direction){

if (direction == 'fwd')
{
if (curr == nPix-1){curr = 1}
else{curr++}
}
if (direction == 'back')
{
if (curr == 1 ){curr = nPix-1}
else{curr--}
}

PictureBox.filters.blendTrans.Apply();
PictureBox.src = preLoad[curr].src;
CaptionBox.innerHTML= Caption[curr];
PictureBox.filters.blendTrans.Play();
}

function runSlideShow(){

if (inUseFlag == false)
{
play.style.visibility = "hidden";
back.style.visibility = "hidden";
fwd.style.visibility = "hidden";
}
PictureBox.filters.blendTrans.Apply();
PictureBox.src = preLoad[slideIMG].src;
CaptionBox.innerHTML= Caption[slideIMG];
PictureBox.filters.blendTrans.Play();
inUseFlag = true;
slideIMG++
if (slideIMG < nPix){setTimeout('runSlideShow()',SlideShowSpeed)}

else {
slideIMG = 1;
curr = nPix-1;
play.style.visibility = "visible"
back.style.visibility = "visible";
fwd.style.visibility = "visible";
inUseFlag = false;
}
}

function swapImage(curr) {

isBtn = curr.toString();
swap = event.type;
if (swap == 'mouseover'){document.getElementById(curr).src = isBtn+'2.jpg'}
if (swap == 'mouseout'){document.getElementById(curr).src = isBtn+'1.jpg'}
}