var homeOn = new Image();
homeOn.src = "images/homeOn.jpg";
var homeOff = new Image();
homeOff.src = "images/homeOff.jpg";

var galerieOn = new Image();
galerieOn.src = "images/galerieOn.jpg";
var galerieOff = new Image();
galerieOff.src = "images/galerieOff.jpg";

var kalenderOn = new Image();
kalenderOn.src = "images/kalenderOn.jpg";
var kalenderOff = new Image();
kalenderOff.src = "images/kalenderOff.jpg";

var preiseOn = new Image();
preiseOn.src = "images/preiseOn.jpg";
var preiseOff = new Image();
preiseOff.src = "images/preiseOff.jpg";

var anfrageOn = new Image();
anfrageOn.src = "images/anfrageOn.jpg";
var anfrageOff = new Image();
anfrageOff.src = "images/anfrageOff.jpg";

var anfahrtOn = new Image();
anfahrtOn.src = "images/anfahrtOn.jpg";
var anfahrtOff = new Image();
anfahrtOff.src = "images/anfahrtOff.jpg";

var kontaktOn = new Image();
kontaktOn.src = "images/kontaktOn.jpg";
var kontaktOff = new Image();
kontaktOff.src = "images/kontaktOff.jpg";

var gaestebuchOn = new Image();
gaestebuchOn.src = "images/gaestebuchOn.jpg";
var gaestebuchOff = new Image();
gaestebuchOff.src = "images/gaestebuchOff.jpg";

function img_act(imgName) {
    var imgOn = eval(imgName + "On.src");
    document[imgName].src = imgOn;
}

function img_inact(imgName) {
    var imgOff = eval(imgName + "Off.src");
    document[imgName].src= imgOff;
}