if (document.images) 
{
 buttons = new Array
 buttons[0] = new Image()
 buttons[0].src="img/about2.jpg"
 
 buttons[1] = new Image()
 buttons[1].src="img/news2.jpg"
 
 buttons[2] = new Image()
 buttons[2].src="img/kontakt2.jpg"
 
 buttons[3] = new Image()
 buttons[3].src="img/akredit2.jpg"
}

function bover(n) {
	if (document.images) {
		newsrc = "img/" + n + "2.jpg";
		document.images[n].src = newsrc;
	}
}

function bout(n) {
	if (document.images) {
		newsrc = "img/" + n + ".jpg";
		document.images[n].src = newsrc;
	}
}