if (document.images) {

	inav_boats = new Image;
	inav_boats.src = "/images/nav_preowned_off.gif";
	rnav_boats = new Image;
	rnav_boats.src = "/images/nav_preowned_on.gif";

	inav_school = new Image;
	inav_school.src = "/images/nav_school_off.gif";
	rnav_school = new Image;
	rnav_school.src = "/images/nav_school_on.gif";

	inav_videos = new Image;
	inav_videos.src = "/images/nav_videos_off.gif";
	rnav_videos = new Image;
	rnav_videos.src = "/images/nav_videos_on.gif";

	inav_dustys = new Image;
	inav_dustys.src = "/images/nav_yachting_off.gif";
	rnav_dustys = new Image;
	rnav_dustys.src = "/images/nav_yachting_on.gif";

	inav_resources = new Image;
	inav_resources.src = "/images/nav_resources_off.gif";
	rnav_resources = new Image;
	rnav_resources.src = "/images/nav_resources_on.gif";

	inav_about = new Image;
	inav_about.src = "/images/nav_about_off.gif";
	rnav_about = new Image;
	rnav_about.src = "/images/nav_about_on.gif";

	inav_contact = new Image;
	inav_contact.src = "/images/nav_contact_off.gif";
	rnav_contact = new Image;
	rnav_contact.src = "/images/nav_contact_on.gif";

	inav_home = new Image;
	inav_home.src = "/images/nav_home_off.gif";
	rnav_home = new Image;
	rnav_home.src = "/images/nav_home_on.gif";


	ivideos = new Image;
	ivideos.src = "/images/ad_video2_off.jpg";
	rvideos = new Image;
	rvideos.src = "/images/ad_video2_on.jpg";

	iforsale = new Image;
	iforsale.src = "/images/ad_boats_for_sale_off.jpg";
	rforsale = new Image;
	rforsale.src = "/images/ad_boats_for_sale_on.jpg";

	ischool = new Image;
	ischool.src = "/images/ad_boat_school_off.gif";
	rschool = new Image;
	rschool.src = "/images/ad_boat_school_on.gif";

	inews = new Image;
	inews.src = "/images/Button_Newsletter.gif";
	rnews = new Image;
	rnews.src = "/images/Button_Newsletter_on.gif";

	}

	function rollon(myGIF) {
		if (document.images) {
		newGIF = eval("r" + myGIF + ".src");
		document [myGIF].src = newGIF;
		}

	}

	function rolloff(myGIF) {
		if (document.images) {
		newGIF = eval("i" + myGIF + ".src");
		document [myGIF].src = newGIF;
		}

	}