var bigpice;
var thumbe;
var fullsizelink

function disp_thumb(num)
{
  bigpice = document.getElementById('BigPic');
  fullsizelink = document.getElementById('FullSizePic');
  thumbe = new Array(3);
  thumbe[0] = document.getElementById('Thumb1');
  thumbe[1] = document.getElementById('Thumb2');
  thumbe[2] = document.getElementById('Thumb3');

  var newsrc = thumbe[num].src;
  newsrc=newsrc.replace(/_thumb/,"_detail");
  bigpice.src=bigpice.src.replace(/_detail/,"_thumb");
  thumbe[num].src=bigpice.src;
  bigpice.src=newsrc;
  fullsizelink.href=newsrc.replace(/_detail/,"");
}


function disp_thumb_large(num)
{
  bigpice = document.getElementById('BigPic');
  fullsizelink = document.getElementById('FullSizePic');
  thumbe = new Array(6);
  thumbe[0] = document.getElementById('Thumb1');
  thumbe[1] = document.getElementById('Thumb2');
  thumbe[2] = document.getElementById('Thumb3');
  thumbe[3] = document.getElementById('Thumb4');
  thumbe[4] = document.getElementById('Thumb5');
  thumbe[5] = document.getElementById('Thumb6');

  var newsrc = thumbe[num].src;
  newsrc=newsrc.replace(/_thumb/,"_detail");
  bigpice.src=bigpice.src.replace(/_detail/,"_thumb");
  thumbe[num].src=bigpice.src;
  bigpice.src=newsrc;
  fullsizelink.href=newsrc.replace(/_detail/,"");
}