function GetRandom()
{
  var random = Math.random();
  return(Math.floor(random*(totalthumbs+1)));
}

function RefreshThumbs()
{
  var url;
  var thumbno = 0;

  var thumb1, thumb2, thumb3, thumb4;

  thumb1 = GetRandom();
  url = "<img src=\"" + baseurl + "/" + thumb1 + ".jpg\" width=\"64\" height=\"64\" alt=\"Thumb 1\">";
  document.getElementById("thumb1").innerHTML = url;

  thumb2 = thumb1;

  while(thumb2 == thumb1) { thumb2 = GetRandom(); }
  url = "<img src=\"" + baseurl + "/" + thumb2 + ".jpg\" width=\"64\" height=\"64\" alt=\"Thumb 2\">";
  document.getElementById("thumb2").innerHTML = url;

  thumb3 = thumb2;
  while(thumb3 == thumb2)
  {
    thumb3 = GetRandom();
    if(thumb3 == thumb1) { thumb3 = thumb2; }
  }
  url = "<img src=\"" + baseurl + "/" + thumb3 + ".jpg\" width=\"64\" height=\"64\" alt=\"Thumb 3\">";
  document.getElementById("thumb3").innerHTML = url;

  thumb4 = thumb3;
  while(thumb4 == thumb3)
  {
    thumb4 = GetRandom();
    if((thumb4 == thumb1) || (thumb4 == thumb2)) { thumb4 = thumb3; }
  }
  url = "<img src=\"" + baseurl + "/" + thumb4 + ".jpg\" width=\"64\" height=\"64\" alt=\"Thumb 4\">";
  document.getElementById("thumb4").innerHTML = url;
}

function StartShuffleThumbs()
{
  setInterval("RefreshThumbs()", 15000);
}

function RefreshThumbsNow()
{
  RefreshThumbs();
  StartShuffleThumbs();
}

// Globals
var totalthumbs = 254;
var baseurl = "Photos/Thumbs";