// this is the navigation rollover stuff - yes it's ancient code that i've used forever and can't remember where it came fromif (document.images) {        exterior        = new Image ();        exterior.src    = "/images/nav/tour/btn_exterior.gif";        exterioron        = new Image ();        exterioron.src    = "/images/nav/tour/btn_exterior_on.gif";        landscaping        = new Image ();        landscaping.src    = "/images/nav/tour/btn_landscaping.gif";        landscapingon        = new Image ();        landscapingon.src    = "/images/nav/tour/btn_landscaping_on.gif";        livingarea        = new Image ();        livingarea.src    = "/images/nav/tour/btn_living_areas.gif";        livingareaon        = new Image ();        livingareaon.src    = "/images/nav/tour/btn_living_areas_on.gif";        kitchen        = new Image ();        kitchen.src    = "/images/nav/tour/btn_kitchen.gif";        kitchenon        = new Image ();        kitchenon.src    = "/images/nav/tour/btn_kitchen_on.gif";        bathroom        = new Image ();        bathroom.src    = "/images/nav/tour/btn_bathroom.gif";        bathroomon        = new Image ();        bathroomon.src    = "/images/nav/tour/btn_bathroom_on.gif";        upstairs        = new Image ();        upstairs.src    = "/images/nav/tour/btn_upstairs.gif";        upstairson        = new Image ();        upstairson.src    = "/images/nav/tour/btn_upstairs_on.gif";        utilities        = new Image ();        utilities.src    = "/images/nav/tour/btn_utilities.gif";        utilitieson        = new Image ();        utilitieson.src    = "/images/nav/tour/btn_utilities_on.gif";        roofing        = new Image ();        roofing.src    = "/images/nav/tour/btn_roof.gif";        roofingon        = new Image ();        roofingon.src    = "/images/nav/tour/btn_roof_on.gif";  }function hbMouseOver(imgnew,imgid) {           if (document.images) {                                document.images[imgid].src=eval(imgnew + ".src");                }  }