var onImg = new Image(50,50);
var offImg = new Image(50,50);

function imageOn(thisImage) {
	thisImage.src = onImg.src;
	return true;
}
function imageOff(thisImage) {
	thisImage.src = offImg.src;
	return true;
}

function message() {
	helpwindow = window.open(helpHREF,'helpscreen','toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=yes,resizable=yes,width=600,height=600');
}