// JavaScript Document
function showPic(whichpic) {
   if (!document.getElementById("placeholder")) return true;
   var source = whichpic.getAttribute("href");
   var placeholder = document.getElementById("placeholder");
   if (placeholder.nodeName != "IMG") return true;
   placeholder.setAttribute("src",source);
   if (!document.getElementById("description")) return false;
   if (whichpic.getAttribute("title")) {
    var text = whichpic.getAttribute("title");
  } else {
    var text = "";
  }
   var description = document.getElementById("description");
   if (description.firstChild.nodeType == 3) {
      description.firstChild.nodeValue = text;
      }
   return false;
   }
   
function prepareGallery() {
   if (!document.getElementsByTagName) return false;
   if (!document.getElementById) return false;
   if (!document.getElementById("imagegallery")) return false;
   var gallery = document.getElementById("imagegallery");
   var links = gallery.getElementsByTagName("a");
   for ( var i=0; i < links.length; i++) {
      links[i].onclick = function() {
         return showPic(this);
         }
      }
   }
   
function addLoadEvent(func) {
   var oldonload = window.onload;
   if (typeof window.onload != 'function') {
      window.onload = func;
      }
      else {
      window.onload = function() {
         oldonload();
         func();
         }
      }
   }
   
addLoadEvent(prepareGallery);