var images = [];

// for each image, use:
// images.push(["filename of large image", "filename of thumbnail", "photo caption"])

images.push(["images/photo_21.jpg","images/photo_thumb_21.jpg","Inauguration by state minister T. Haile and ambassador H. Blankenberg"]);
images.push(["images/photo_22.jpg","images/photo_thumb_22.jpg","Guests at processing plant inauguration "]);
images.push(["images/photo_01.jpg","images/photo_thumb_01.jpg","Passion Fruit on trellis"]);
images.push(["images/photo_02.jpg","images/photo_thumb_02.jpg","Drip irrigation at Degaga Farm"]);
images.push(["images/photo_03.jpg","images/photo_thumb_03.jpg","Passion Fruit planting - photo Janny Resoort"]);
images.push(["images/photo_04.jpg","images/photo_thumb_04.jpg","Papaya at Tibila Farm"]);
images.push(["images/photo_05.jpg","images/photo_thumb_05.jpg","Mango at Tibila Farm"]);
images.push(["images/photo_06.jpg","images/photo_thumb_06.jpg","Passion Fruit flower"]);
images.push(["images/photo_07.jpg","images/photo_thumb_07.jpg","Awash river - photo Janny Resoort"]);
images.push(["images/photo_08.jpg","images/photo_thumb_08.jpg","Workers building trellis"]);
images.push(["images/photo_09.jpg","images/photo_thumb_09.jpg","Fertigation system at Degaga Farm"]);
images.push(["images/photo_10.jpg","images/photo_thumb_10.jpg","Tibila Farm worker - photo Janny Resoort"]);
images.push(["images/photo_11.jpg","images/photo_thumb_11.jpg","Desilting basin for irrigation water"]);
images.push(["images/photo_12.jpg","images/photo_thumb_12.jpg","Nurse at Tibila Farm clinic - photo Janny Resoort"]);
images.push(["images/photo_13.jpg","images/photo_thumb_13.jpg","Outgrower farmers - photo Janny Resoort"]);
images.push(["images/photo_14.jpg","images/photo_thumb_14.jpg","Passion Fruit pruning - photo Janny Resoort"]);
images.push(["images/photo_15.jpg","images/photo_thumb_15.jpg","Children at Tibila Farm - photo Janny Resoort"]);
images.push(["images/photo_16.jpg","images/photo_thumb_16.jpg","Tibila Farm worker"]);
images.push(["images/photo_17.jpg","images/photo_thumb_17.jpg","Tibila Farm citrus - photo Janny Resoort"]);
images.push(["images/photo_18.jpg","images/photo_thumb_18.jpg","Degaga Farm nursery - photo Janny Resoort"]);
images.push(["images/photo_19.jpg","images/photo_thumb_19.jpg","Community members - photo Janny Resoort"]);
images.push(["images/photo_20.jpg","images/photo_thumb_20.jpg","Papaya intercropping with cabbage"]);


function randomImage() {
  var random = Math.floor(images.length * Math.random())
  changeImage(random);
}

function changeImage(img) {
  document.getElementById('image').innerHTML = "<img src='" + images[img][0] + "' width='374' height='261' border='0' />";
  document.getElementById('imagecaption').innerHTML = images[img][2];
}


function generateThumbs() {
  var thumbnails = "<div id='thumbnailcontainer' style='width: " + (((images.length - 1) * 56) - 17) + "px;'>";
  for(i=0; i<images.length; i++) {
    if (i == images.length-1) {
      gap = 0;
    } else {
      gap = 10;
    }
    thumbnails = thumbnails + "<div class='thumb' style='margin-right: " + gap + "px;'><a href='javascript:changeImage(" + i + ");'><img src='" + images[i][1] + "' width='40' height='31' border='0' /></a></div>";
  }
  document.getElementById('thumbnails').innerHTML = thumbnails + "</div>";
 
}