function confirmLogout() {
  if(confirm("Are you sure you want to logout?\n\nOk to continue, Cancel to abort."))
    window.location='/logout/'; 
}
function openCVV() {
  var cvvWindow = window.open('/checkout/cvv/', 'cvvWindow', 'width=500,height=400,status=1,toolbar=0,location=0,menubar=0,directories=0,resizable=1,scrollbars=1');
  cvvWindow.focus();
}
function openTerms() {
  var termsWindow = window.open('/checkout/terms/', 'termsWindow', 'width=500,height=400,status=1,toolbar=0,location=0,menubar=0,directories=0,resizable=1,scrollbars=1');
  termsWindow.focus();
}
function addToCart(productId) {
  window.location.href='/cart/?method=add&id='+productId+'&quantity='+$F('quantity_'+productId);
}