function bookmark() {

  var ver = navigator.appName;
  var num = parseInt(navigator.appVersion);
  var bmurl="http://www.mactavishhomes.com/";
  var bmtitle="MacTavish - Legendary Custom Homes in Raleigh, NC";

//  if (window.external) {
  if ((ver == "Microsoft Internet Explorer")&&(num >= 4)) {
    window.external.AddFavorite(bmurl, bmtitle);
  } else if (document.all) {
    window.external.AddFavorite(bmurl, bmtitle);
  } else if (window.sidebar) {
    window.sidebar.addPanel(bmtitle, bmurl, '');
  } else if (navigator.userAgent.indexOf("Opera") != -1) {
    alert("Press Ctrl-T after closing this message to add MacTavish Custom Homes to your hotlist");
  } else {
    alert("Press Ctrl-D after closing this message to bookmark MacTavish Custom Homes");
  }
}

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) {
		menu_agents_over = newImage("images/menu-agents-over.jpg");
		menu_contact_over = newImage("images/menu-contact-over.jpg");
		menu_home_over = newImage("images/menu-home-over.jpg");
		menu_neighborhood_over = newImage("images/menu-neighborhood-over.jpg");
		menu_pathway_over = newImage("images/menu-pathway-over.jpg");
		menu_available_over = newImage("images/menu-available-over.jpg");
		menu_sitemap_over = newImage("images/menu-sitemap-over.jpg");
		preloadFlag = true;
	}
}