if (document.images) {

	homeOff = new Image
	homeOn = new Image
	picturesOff = new Image
	picturesOn = new Image
	contactOff = new Image
	contactOn = new Image

	homeOff.src = "images/home-off.gif"
	homeOn.src = "images/home-on.gif"
	picturesOff.src = "images/pictures-off.gif"
	picturesOn.src = "images/pictures-on.gif"
	contactOff.src = "images/contact-off.gif"
	contactOn.src = "images/contact-on.gif"
	}

else {
	homeOff = ""
	homeOn = ""
	picturesOff = ""
	picturesOn = ""
	contactOff = ""
	contactOn = ""

	document.buttonHome = ""
	document.buttonPictures = ""
	document.buttonContact = ""
	}