function addToCart(itemId) {
  if (unsupportedBrowser) {
    alert('Unsupported Brower. Please Upgrade.');
  } else {
    addToCartIFrame.document.location.replace('cart.php?ajax=true&add=true&qty_'+itemId+'=1');
  }
}
function cartUpdated(totalItems,totalCost) {
  var cartItems = document.getElementById('cartItems');
  var origItems = cartItems.innerHTML*1;
  cartItems.innerHTML = totalItems;
  if (origItems < 1) {
    new Effect.SlideDown('cartElement');
  } else if (totalItems != origItems) {
    new Effect.Highlight('cartElementText');
  }
}

function imagePopup(itemId) {
  var url = "image_popup.php?item_id="+itemId;
  if (imagePopup.window == null || imagePopup.window.closed) {
    imagePopup.window = window.open(url,"imagePopupWin","width=794,height=487,scrollbars=no,resizable=no,toolbar=no,status=no");
  } else {
    imagePopup.window.document.location=url;
    imagePopup.window.focus();
  }
}

function closeImagePopup() {
  if (imagePopup.window) {
    imagePopup.window.close();
  }
}