if (document.images) {
	curriculumOff = new Image
	curriculumHover = new Image
	barnabyOff = new Image
	barnabyHover = new Image
	bookOff = new Image
	bookHover = new Image
	linksOff = new Image
	linksHover = new Image

	curriculumOff.src = "images_teachers/tabs/curriculum_off.gif"
	curriculumHover.src = "images_teachers/tabs/curriculum_off_hover.gif"
	barnabyOff.src = "images_teachers/tabs/barnaby_off.gif"
	barnabyHover.src = "images_teachers/tabs/barnaby_off_hover.gif"
	bookOff.src = "images_teachers/tabs/book_list_off.gif"
	bookHover.src = "images_teachers/tabs/book_list_off_hover.gif"
	linksOff.src = "images_teachers/tabs/links_off.gif"
	linksHover.src = "images_teachers/tabs/links_off_hover.gif"
}