/* 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 = [
    ['@logo.gif','information', 'The beautiful mountains'],
    ['@walk.gif','interference','The crystal clear lake'],
    ['@alchemy.gif','message','The lonesome, barren tree']
  ]
  
  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);
  }