var num2=0;

imgArray2 = [
  ['http://movermoms.org/programs/bookclub/previous/book2/photo_01.jpg','photo 1 mouseover text'],
  ['http://movermoms.org/programs/bookclub/previous/book2/photo_02.jpg','photo 2 mouseover text'],
  ['http://movermoms.org/programs/bookclub/previous/book2/photo_03.jpg','photo 3 mouseover text'],
  ['http://movermoms.org/programs/bookclub/previous/book2/photo_04.jpg','photo 4 mouseover text'],
  ['http://movermoms.org/programs/bookclub/previous/book2/photo_05.jpg','photo 5 mouseover text'],
  ['http://movermoms.org/programs/bookclub/previous/book2/photo_06.jpg','photo 6 mouseover text'],
  ['http://movermoms.org/programs/bookclub/previous/book2/photo_07.jpg','photo 7 mouseover text']
  ]

function slideshow2(slide_num) {
  document.getElementById('mypic2').src=imgArray2[slide_num][0];
  document.getElementById('mypic2').alt=imgArray2[slide_num][1];
}

function slideshow2Up() {
  num2++;
  num2 = num2 % imgArray2.length;
  slideshow2(num2);
}

function slideshow2Back() {
  num2--;
  if (num2 < 0) {num2=imgArray2.length-1;}
  num2 = num2 % imgArray2.length;
  slideshow2(num2);
}