/* preload images */
function PreloadImages(){
  if (document.images){
		onImages = new Array(14);
		for (var i=0; i<14; i++){ onImages[i] = new Image(); }
		onImages[0].src  = "images/about.gif";
		onImages[1].src  = "images/teambuilding_programs.gif";
		onImages[2].src  = "images/meeting_facilitation.gif";
		onImages[3].src  = "images/collaboration_skills.gif";
		onImages[4].src  = "images/q_a.gif";
		onImages[5].src  = "images/contact.gif";
		onImages[6].src  = "images/locations_links.gif";
		onImages[7].src  = "images/download_pdf.gif";
		onImages[8].src  = "images/sitemap.gif";
    	onImages[9].src  = "images/home.gif";
		onImages[10].src  = "images/request_quote.gif";
		onImages[11].src  = "images/learning_resources.gif";
	onImages[12].src  = "images/discussion_forum.gif";
	onImages[13].src  = "images/news.gif";

    offImages = new Array(14);

		for (var i=0; i<14; i++){ offImages[i] = new Image(); }
		offImages[0].src  = "images/about_b.gif";
		offImages[1].src  = "images/teambuilding_programs_b.gif";
		offImages[2].src  = "images/meeting_facilitation_b.gif";
		offImages[3].src  = "images/collaboration_skills_b.gif";
		offImages[4].src  = "images/q_a_b.gif";
		offImages[5].src  = "images/contact_b.gif";
		offImages[6].src  = "images/locations_links_b.gif";
		offImages[7].src  = "images/download_pdf_b.gif";
		offImages[8].src  = "images/sitemap_b.gif";
    	offImages[9].src  = "images/home_b.gif";
		offImages[10].src  = "images/request_quote_b.gif";
		offImages[11].src  = "images/btn_learning_b.gif";
	offImages[12].src  = "images/discussion_forum_b.gif";
	onImages[13].src  = "images/news_b.gif";
		}
  }

PreloadImages();

/* image rollovers */
function ImageOn(imageName,index){
  if (document.images){
    document.images[imageName].src = onImages[index].src;
    }
  }

function ImageOff(imageName,index){
  if (document.images){
    document.images[imageName].src = offImages[index].src;
    }
  }