if (document.images) {
		button1blank = new Image
		button1grijs = new Image
		button1groen = new Image
		button2blank = new Image
		button2grijs = new Image
		button2groen = new Image
		button3blank = new Image
		button3grijs = new Image
		button3groen = new Image
		button4blank = new Image
		button4grijs = new Image
		button4groen = new Image
		button5blank = new Image
		button5grijs = new Image
		button5groen = new Image

		button1blank.src = "images/button_blank_home.jpg"
		button1grijs.src = "images/button_grijs_home.jpg"
		button1groen.src = "images/button_groen_home.jpg"
		button2blank.src = "images/button_blank_annelies.jpg"
		button2grijs.src = "images/button_grijs_annelies.jpg"
		button2groen.src = "images/button_groen_annelies.jpg"
		button3blank.src = "images/button_blank_automatisering.jpg"
		button3grijs.src = "images/button_grijs_automatisering.jpg"
		button3groen.src = "images/button_groen_automatisering.jpg"
		button4blank.src = "images/button_blank_reizen.jpg"
		button4grijs.src = "images/button_grijs_reizen.jpg"
		button4groen.src = "images/button_groen_reizen.jpg"
		button5blank.src = "images/button_blank_contact.jpg"
		button5grijs.src = "images/button_grijs_contact.jpg"
		button5groen.src = "images/button_groen_contact.jpg"
} else {
		button1blank = ""
		button1grijs = ""
		button1groen = ""
		button2blank = ""
		button2grijs = ""
		button2groen = ""
		button3blank = ""
		button3grijs = ""
		button3groen = ""
		button4blank = ""
		button4grijs = ""
		button4groen = ""
		button5blank = ""
		button5grijs = ""
		button5groen = ""

		document.button1 = ""
		document.button2 = ""
		document.button3 = ""
		document.button4 = ""
		document.button5 = ""
}

if (document.images) {
		sbutton1blank = new Image
		sbutton1groen = new Image
		sbutton1grijs = new Image
		sbutton2blank = new Image
		sbutton2groen = new Image
		sbutton2grijs = new Image
		
		sbutton1blank.src = "images/sbutton_blank_cv.jpg"
		sbutton1groen.src = "images/sbutton_groen_cv.jpg"
		sbutton1grijs.src = "images/sbutton_grijs_cv.jpg"
		sbutton2blank.src = "images/sbutton_blank_annahiking.jpg"
		sbutton2groen.src = "images/sbutton_groen_annahiking.jpg"
		sbutton2grijs.src = "images/sbutton_grijs_annahiking.jpg"

} else {
		sbutton1blank = ""
		sbutton1groen = ""
		sbutton1grijs = ""
		sbutton2blank = ""
		sbutton2groen = ""
		sbutton2grijs = ""
		
		document.sbutton1 = ""
		document.sbutton2 = ""
	}

//Zichtbaar en onzichtbaar maken van tekstveld
function openText(bloknaam) {
	var textOn = document.getElementById(bloknaam);
	textOn.style.visibility = "visible";
}
		
function closeText(bloknaam) {
	var textOff = document.getElementById(bloknaam);
	textOff.style.visibility = "hidden";
}