/* 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/overall_01.jpg','', 'Photo : 1/12'],
  ['images/overall_02.jpg','', 'Photo : 2/12'],
  ['images/overall_03.jpg','', 'Photo : 3/12'],
  ['images/overall_04.jpg','', 'Photo : 4/12'],
  ['images/overall_05.jpg','', 'Photo : 5/12'],
  ['images/overall_06.jpg','', 'Photo : 6/12'],
  ['images/overall_07.jpg','', 'Photo : 7/12'],
  ['images/overall_08.jpg','', 'Photo : 8/12'],
  ['images/overall_09.jpg','', 'Photo : 9/12'],
  ['images/overall_10.jpg','', 'Photo : 10/12'],
  ['images/overall_11.jpg','', 'Photo : 11/12'],
  ['images/overall_12.jpg','', 'Photo : 12/12']
]

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);
}