var popupWindow;
function closePopup() {
  if (popupWindow && popupWindow.location && ! popupWindow.closed) popupWindow.close();
}
function openPopupFreight() {
  closePopup();
      popupWindow = window.open("../pages/freight.php", "", "width=580, height=193");
  
}
function openPopupTerms() {
  closePopup();
      popupWindow = window.open("../pages/terms.php", "", "width=520, height=600,scrollbars=1");
  
}