var width=0;
var mLeft=0;
var size=0;

var speed=1;

function slideshow() {
	var slideshow=document.getElementById('slideshow');
	var imgs=slideshow.getElementsByTagName('img');
	var j=0;
	
	while (size<510) {
		size+=imgs[j].width+10;
		slideshow.getElementsByTagName('span')[0].innerHTML+='<img src="'+imgs[j].src+'" alt="'+imgs[j].alt+'" />';
		j++;
	}
	
	imgs=slideshow.getElementsByTagName('img');
	
	for (var i=0; i<imgs.length; i++) width+=(imgs[i].width+10);
	slideshow.getElementsByTagName('span')[0].style.width=width+'px';
	
	setInterval("move()", 30);
}
function move() {
	mLeft+=speed;
	if ((mLeft+500)>=width) mLeft=size-500;
	
	document.getElementById('slideshow').getElementsByTagName('span')[0].style.left='-'+mLeft+'px';
}