@dbarnett I have placed log statements in the client script :
function pageInit(context) {log.debug('entering pageInit function');
}
function callSpecialOrder(targetCompany) {
log.debug('entering callQuickOrder function, customer is '+targetCompany);
window.location.href='/app/site/hosting/scriptlet.nl?script=163&deploy=1&companyName=' + targetCompany;
};