function newImage(arg) {
  if (document.images) {
    rslt = new Image();
    rslt.src = arg;
    return rslt;
  }
}

var preloadFlag = false;
function preloadImages() {
	if (document.images) {
    a = newImage("/img/locale-en_US-over.gif");
    a = newImage("/img/locale-zh_HK-over.gif");
    a = newImage("/img/locale-zh_CN-over.gif");
    a = newImage("/img/en_US/mm_home-over.gif");
    a = newImage("/img/en_US/mm_features-over.gif");
    a = newImage("/img/en_US/mm_commod-over.gif");
    a = newImage("/img/en_US/mm_contact-over.gif");
    a = newImage("/img/en_US/sm_email-over.gif");
    a = newImage("/img/en_US/sm_addr-over.gif");
		preloadFlag = true;
	}
}

function changeImages() {
	if (document.images && (preloadFlag == true)) {
		for (var i=0; i<changeImages.arguments.length; i+=2) {
			document[changeImages.arguments[i]].src = changeImages.arguments[i+1];
		}
	}
}

function markLocale(locale) {
  document.contactus.subject.value = locale+document.contactus.xsubject.value;
}