//if the browser supports images
			if (document.images){
//create new images for buttons in their normal and rollover states
				home = new Image
				companyinfo = new Image
				facilities = new Image
				contact = new Image
				directions = new Image
				services = new Image
				dyno = new Image
				engine = new Image
				trans = new Image
				fabrication = new Image
				upholstery = new Image
				stages = new Image
				store = new Image
				linecard = new Image
				gallery = new Image
				newsletter = new Image
				links = new Image
				media = new Image
				events = new Image
				testamonials = new Image
				careers = new Image

				homeover= new Image
				companyinfoover = new Image
				facilitiesover = new Image
				contactover = new Image
				directionsover = new Image
				servicesover = new Image
				dynoover = new Image
				engineover = new Image
				transover = new Image
				fabricationover = new Image
				upholsteryover = new Image
				stagesover = new Image
				storeover= new Image
				linecardover = new Image
				galleryover = new Image
				newsletterover = new Image
				linksover = new Image
				mediaover = new Image
				eventsover = new Image
				testamonialsover = new Image
				careersover = new Image

//assign a source file to all buttons, both normal and rollover states
				home.src = "images/layout/home.gif"
				companyinfo.src = "images/layout/companyinfo.gif"
				facilities.src = "images/layout/facilities.gif"
				contact.src = "images/layout/contact.gif"
				directions.src = "images/layout/directions.gif"
				services.src = "images/layout/services.gif"
				dyno.src = "images/layout/dyno.gif"
				engine.src = "images/layout/engine.gif"
				trans.src = "images/layout/trans.gif"
				fabrication.src = "images/layout/fabrication.gif"
				upholstery.src = "images/layout/upholstery.gif"
				stages.src = "images/layout/stages.gif"
				store.src = "images/layout/store.gif"
				linecard.src = "images/layout/linecard.gif"
				gallery.src = "images/layout/gallery.gif"
				newsletter.src = "images/layout/newsletter.gif"
				links.src = "images/layout/links.gif"
				media.src = "images/layout/media.gif"
				events.src = "images/layout/events.gif"
				testamonials.src = "images/layout/testamonials.gif"
				careers.src = "images/layout/careers.gif"

				homeover.src = "images/layout/homeover.gif"
				companyinfoover.src = "images/layout/companyinfoover.gif"
				facilitiesover.src = "images/layout/facilitiesover.gif"
				contactover.src = "images/layout/contactover.gif"
				directionsover.src = "images/layout/directionsover.gif"
				servicesover.src = "images/layout/servicesover.gif"
				dynoover.src = "images/layout/dynoover.gif"
				engineover.src = "images/layout/engineover.gif"
				transover.src = "images/layout/transover.gif"
				fabricationover.src = "images/layout/fabricationover.gif"
				upholsteryover.src = "images/layout/upholsteryover.gif"
				stagesover.src = "images/layout/stagesover.gif"
				storeover.src = "images/layout/storeover.gif"
				linecardover.src = "images/layout/linecardover.gif"
				galleryover.src = "images/layout/galleryover.gif"
				newsletterover.src = "images/layout/newsletterover.gif"
				linksover.src = "images/layout/linksover.gif"
				mediaover.src = "images/layout/mediaover.gif"
				eventsover.src = "images/layout/eventsover.gif"
				testamonialsover.src = "images/layout/testamonialsover.gif"
				careersover.src = "images/layout/careersover.gif"

				}
//if browser doesn't support images set all buttons to null	
			else {
				home = ""
				companyinfo = ""
				facilities = ""
				contact = ""
				directions = ""
				services = ""
				dyno = ""
				engine = ""
				trans = ""
				fabrication = ""
				upholstery = ""
				stages = ""
				store = ""
				linecard = ""
				gallery = ""
				newsletter = ""
				links = ""
				media = ""
				events = ""
				testamonials = ""
				careers = ""

				homeover= ""
				companyinfoover = ""
				facilitiesover = ""
				contactover = ""
				directionsover = ""
				servicesover = ""
				dynoover = ""
				engineover = ""
				transover = ""
				fabricationover = ""
				upholsteryover = ""
				stagesover = ""
				storeover = ""

				linecardover = ""
				galleryover = ""
				newsletterover = ""
				linksover = ""
				mediaover = ""
				eventsover = ""
				testamonialsover = ""
				careersover = ""
				}

//function changes button to normal state image
			function chg_to_norm(img){
				if (document.images){
					document[img].src = eval (img + ".src")
				}
			}

//funtion changes button to rollover state image
			function chg_to_roll(img){
				if (document.images){
					document[img].src = eval (img + "over.src")
				}
			}