var imgs = [
{
"title":"Aubergines",
"path":"images/053.jpg",
"dir":"width"},
{
"title":"Pineapple and Tofu",
"path":"images/043.jpg",
"dir":"width"},
{
"title":"Rabbit",
"path":"images/050.jpg",
"dir":"height"},
{
"title":"Blueberry Pies",
"path":"images/057.jpg",
"dir":"width"},
{
"title":"Blueberry Pies",
"path":"images/093.jpg",
"dir":"width"},
{
"title":"Blueberry Pies",
"path":"images/098.jpg",
"dir":"height"},
{
"title":"Blueberry Pies",
"path":"images/138.jpg",
"dir":"width"},
{
"title":"Blueberry Pies",
"path":"images/148.jpg",
"dir":"width"},
{
"title":"Blueberry Pies",
"path":"images/150.jpg",
"dir":"width"},
{
"title":"Blueberry Pies",
"path":"images/158.jpg",
"dir":"height"}
]

function switchImage() {
if (pos>=imgs.length)
pos=0;
else if(pos<0)
pos=imgs.length-1;
document.getElementById('slideshow').src=imgs[pos]["path"];
document.getElementById('slideshow').alt=imgs[pos]["title"];
}