function canManipulateImages() {
if (document.images) return true;
else return false;
}
function setImage(imageURL) {
//document.main_product_image.src = imageURL;
var mainImg = document.getElementById('main_product_image');
mainImg.src = imageURL;
}
function setLink(imageURL) {
imageURL=imageURL.replace("medium","large");
var mainLink = document.getElementById('terrazzo_link');
mainLink.href = imageURL;
}
function loadPosterImage(imageURL) {
if (gImageCapableBrowser) {
setImage(imageURL.getAttribute("href"));
setLink(imageURL.getAttribute("href"));
return false;
} else {
return true;
}
}
gImageCapableBrowser = canManipulateImages();

//this script loops through all thumbnail links on the web page

function thumbnailLinks() {
 if (!document.getElementsByTagName) return;
 var anchors = document.getElementsByTagName("a");
 for (var i=0; i<anchors.length; i++) {
   var anchor = anchors[i];
   if (anchor.getAttribute("rel") == "thumbnail") {
     //anchor.onClick = loadPosterImage(anchor.href);
	 anchor.onclick = function () { return loadPosterImage(this); }
     anchor.target = "_blank";
	 anchor.title = "click for large version"; }
 }
}
addLoadEvent(thumbnailLinks);