var num=0;

imgArray = [
  ['images/work/1.jpg','1',' '],
  ['images/work/2.jpg','2',' '],
  ['images/work/3.jpg','3',' '],
  ['images/work/4.jpg','4',' '],
  ['images/work/5.jpg','5',' '],
  ['images/work/6.jpg','6',' '],
  ['images/work/7.jpg','7',' '],
  ['images/work/8.jpg','8',' '],
  ['images/work/9.jpg','9',' '],
  ['images/work/10.jpg','10',' '],
  ['images/work/11.jpg','11',' '],
  ['images/work/12.jpg','12',' '],
  ['images/work/13.jpg','13',' ']
]

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);
}

var a=0;

imgDirect = [
  ['images/work/1.jpg'],
  ['images/work/2.jpg'],
  ['images/work/3.jpg'],
  ['images/work/4.jpg'],
  ['images/work/5.jpg'],
  ['images/work/6.jpg'],
  ['images/work/7.jpg'],
  ['images/work/8.jpg'],
  ['images/work/9.jpg'],
  ['images/work/10.jpg'],
  ['images/work/11.jpg'],
  ['images/work/12.jpg'],
  ['images/work/13.jpg']
]

function changeimage(change) {
  num = change;
  document.getElementById('mypic').src=imgDirect[change];
}