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

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];
		}
	}
}

var preloadFlag = false;
function preloadImages() {
	if (document.images) {
		ViewMore_over = newImage("images/ArrowOn.gif");
		Button_H_over = newImage("images/Button_H-over.gif");
		Button_AU_over = newImage("images/Button_AU-over.gif");
		Button_CN_over = newImage("images/Button_CN-over.gif");
		Button_AN_over = newImage("images/Button_AN-over.gif");
		Button_AS_over = newImage("images/Button_AS-over.gif");
		preloadFlag = true;
	}
}

// this function is what creates the popup window 
function OpenPopUp(strFile, thewidth, theheight) {
  window.open(strFile,'Add','width=' + thewidth + ',height=' + theheight + ',top=50,left=50,scrollbars=1,resizable=1,status=1');
}