function prepareLinks() {

var links = document.getElementsByTagName("a");

for (var i=0; i<links.length; i++) {
  if (links[i].className == "casestudyThumbnail") {
    links[i].onclick = function() {
	  popUp(this.getAttribute("href"), 800, 600);
	  return false;
	}
  }
  
  if (links[i].getAttribute("id")) {
    links[i].onclick = function() {
	  closeWindow();
	}
  }
}

}

function popUp(winURL, width, height) {
	window.open(winURL, "image", "width="+width+", height="+height+"");
}

function closeWindow() {
  self.close();
}

window.onload = prepareLinks;