function showEnlargedImage(dir, file, pg)
{
  var path=dir+"/"+file;
  var content = "<a href='"+pg+"#self' onclick='hideEnlargedImage()' ><img src='"+path+"' /></a>";
  content += "<div style='text-align: right; padding-top: 3px'><a href='"+pg+"#self' onclick='hideEnlargedImage()' >Close [X]</a></div>";
  var imgDiv = document.getElementById("popup");
  imgDiv.style.border = "1px #E0E0E0 solid";
  imgDiv.style.padding = "5px";
  imgDiv.style.backgroundColor = "#F0F0F0";
  imgDiv.innerHTML = content;
  imgDiv.style.position = "absolute";
  imgDiv.style.top = "90px";
  imgDiv.style.visibility = "visible";
}

function hideEnlargedImage()
{
  document.getElementById("popup").style.visibility = "hidden";
}