<!-- hide this script from non-javascript-enabled browsers
if (document.images) {
	back_button = new Image
	back_button_over = new Image
	concept_button = new Image
	concept_button_over = new Image
	travel_button = new Image
	travel_button_over = new Image
	stilllife_button = new Image
	stilllife_button_over = new Image
	textures_button = new Image
	textures_button_over = new Image
	info_button = new Image
	info_button_over = new Image

	back_button.src = "graphic/front/back_button.gif"
	back_button_over.src = "graphic/front/back_button_over.gif"
	concept_button.src = "graphic/front/concept_button.gif"
	concept_button_over.src = "graphic/front/concept_button_over.gif"
	travel_button.src = "graphic/front/travel_button.gif"
	travel_button_over.src = "graphic/front/travel_button_over.gif"
	stilllife_button.src = "graphic/front/stilllife_button.gif"
	stilllife_button_over.src = "graphic/front/stilllife_button_over.gif"
	textures_button.src = "graphic/front/textures_button.gif"
	textures_button_over.src = "graphic/front/textures_button_over.gif"
	info_button.src = "graphic/front/info_button.gif"
	info_button_over.src = "graphic/front/info_button_over.gif"
	}
else {
	back_button = ""
	back_button_over = ""
	document.backbutton = ""
	concept_button = ""
	concept_button_over = ""
	document.conceptbutton = ""
	travel_button = ""
	travel_button_over = ""
	document.travelbutton = ""
	stilllife_button = ""
	stilllife_button_over = ""
	document.stilllifebutton = ""
	textures_button = ""
	textures_button_over = ""
	document.texturesbutton = ""
	info_button = ""
	info_button_over = ""
	document.infobutton = ""
	}
// stop hiding -->