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) {
		nnroadmarkers_03_over = newImage("images/nnroadmarkers_03-over.jpg");
		nnroadmarkers_04_over = newImage("images/nnroadmarkers_04-over.jpg");
		nnroadmarkers_05_over = newImage("images/nnroadmarkers_05-over.jpg");
		nnroadmarkers_06_over = newImage("images/nnroadmarkers_06-over.jpg");
		nnroadmarkers_07_over = newImage("images/nnroadmarkers_07-over.jpg");
		preloadFlag = true;
	}
}
function MM_goToURL() { //v3.0
  var i, args=MM_goToURL.arguments; document.MM_returnValue = false;
  for (i=0; i<(args.length-1); i+=2) eval(args[i]+".location='"+args[i+1]+"'");
}