/* This script and many more are available free online at
The JavaScript Source!! http://javascript.internet.com
Created by: Jay M. Rumsey, OD | http://www.nova.edu/~rumsey */

var num=0;

imgArray = [
  ['images/Niort.jpg','Niort', 'Donjon de Niort'],
  ['images/Cognac.jpg','Cognac','The Charente in Cognac'],
  ['images/LaRochelle.jpg','La Rochelle','The harbour at La Rochelle'],
  ['images/Saintes.jpg','Saintes','The Roman Amphitheatre at Saintes'],
  ['images/MaraisPoitevin1.jpg','The Marais Poitevin','A canal in Marais Poitevin']  
]

function slideshow(slide_num) {
  document.getElementById('mypic').src=imgArray[slide_num][0];
  document.getElementById('mypic').alt=imgArray[slide_num][1];
  document.getElementById('burns').innerHTML=imgArray[slide_num][2];
}

function slideshowUp() {
  num++;
  num = num % imgArray.length;
  slideshow(num);
}

function slideshowBack() {
  num--;
  if (num < 0) {num=imgArray.length-1;}
  num = num % imgArray.length;
  slideshow(num);
}
// JavaScript Document