var sources = new Array();
var i = 0 ;
var j = 1 ;
for (i ; i <= 36 ; i++) {sources[i] = "slideshow/festival" + j + ".jpg" ; j++ ;}

var duration = 3;
var slides = new Array();
var counter = 0;
var t;

function slideshow()
{
var n = (counter + 1)%sources.length ;

if (slides[n] && (slides[n].complete || slides[n].complete == null))
{document.getElementById("slideImage").src = slides[counter = n].src ;}

slides[n=(counter+1)%sources.length] = new Image() ;
slides[n].src = sources[n] ;

t = setTimeout("slideshow()", duration * 1000) ;
}

function showSlideshow()
{

if (t) {clearTimeout(t);}
document.getElementById("slideTransparent").style.visibility="visible";
document.getElementById("slideDiv").style.visibility="visible";
slideshow();
}

function hideSlideshow()
{
if (t) {clearTimeout(t);}
document.getElementById("slideDiv").style.visibility="hidden";
document.getElementById("slideTransparent").style.visibility="hidden";
}