<!-- used in shop_billing_change_address.php and shop_shipping_change_address//-->
var selected;
function selectRowEffect(object, buttonSelect) {
  if (!selected) {
    if (document.getElementById) {
      selected = document.getElementById('defaultSelected');
    } else {
      selected = document.all['defaultSelected'];
    }
  }

  if (selected) selected.className = 'moduleRow';
  object.className = 'moduleRowSelected';
  selected = object;

// one button is not an array
  if (document.checkout_address.setaddress[0]) {
    document.checkout_address.setaddress[buttonSelect].checked=true;
  } else {
    document.checkout_address.setaddress.checked=true;
  }
}

<!-- ////////////////////////////////////////////// -->

<!-- used in shop_checkout.php //-->
function show_processing() {
	var targelem = document.getElementById('loader_container');
	targelem.style.display='block';
	targelem.style.visibility='visible';
}
<!-- ////////////////////////////////////////////// -->