var a = new Image(); a.src = 'lup.gif';
var b = new Image(); b.src = 'ldown.gif';
var c = new Image(); c.src = 'rup.gif';
var d = new Image(); d.src = 'rdown.gif';

var photos=new Array()

var captions=new Array()


var which=0;

var preloadedimages=new Array();
var loaded=new Array();

function applyeffect(){
if (document.all){
photoslider.filters.revealTrans.Transition=6;
photoslider.filters.revealTrans.stop();
photoslider.filters.revealTrans.apply();
}
}

function playeffect(){
if (document.all){
photoslider.filters.revealTrans.play();
}
}

function keeptrack(){
window.status="Image "+(which+1)+" of "+photos.length;
}


function backward(){
if (which>0){
which--; } else { which = photos.length-1; }
newslide();
}

function forward(){
if (which<photos.length-1){
which++; } else { which = 0; }
newslide();
}

function newslide(){
// var caption = document.getElementById("caption");
// caption.firstChild.nodeValue=captions[which];
keeptrack();
if (loaded[which]) {
applyeffect();
document.images.photoslider.src=photos[which];
playeffect();
}
}