var image01 = new Image();	image01.src = "images/knop_n_synopsis.gif"
var image02 = new Image();	image02.src = "images/knop_a_synopsis.gif"
var image03 = new Image();	image03.src = "images/knop_n_credits.gif"
var image04 = new Image();	image04.src = "images/knop_a_credits.gif"
var image05 = new Image();	image05.src = "images/knop_n_history.gif"
var image06 = new Image();	image06.src = "images/knop_a_history.gif"
var image07 = new Image();	image07.src = "images/knop_n_pictures.gif"
var image08 = new Image();	image08.src = "images/knop_a_pictures.gif"
var image09 = new Image();	image09.src = "images/knop_n_preview.gif"
var image10 = new Image();	image10.src = "images/knop_a_preview.gif"
var image11 = new Image();	image11.src = "images/knop_n_reviews.gif"
var image12 = new Image();	image12.src = "images/knop_a_reviews.gif"
var image13 = new Image();	image13.src = "images/knop_n_events.gif"
var image14 = new Image();	image14.src = "images/knop_a_events.gif"
var image15 = new Image();	image15.src = "images/knop_n_contact.gif"
var image16 = new Image();	image16.src = "images/knop_a_contact.gif"
var image17 = new Image();	image17.src = "images/knop_n_powered.gif"
var image18 = new Image();	image18.src = "images/knop_a_powered.gif"

var changeButton = function(imageName, imageObject){
	if(imageObject != activeImage){
		document.images[imageName].src = imageObject.src
	}
}