function init(){

b11 = new Image();
b11.src = "images/but_startseite.gif";

b12 = new Image();
b12.src = "images/but_startseite_r.gif";

b21 = new Image();
b21.src = "images/but_kontakt.gif";

b22 = new Image();
b22.src = "images/but_kontakt_r.gif";

b31 = new Image();
b31.src = "images/weiterb.jpg";

b32 = new Image();
b32.src = "images/weiterg.jpg";

b41 = new Image();
b41.src = "images/button-bestell-blau.jpg";

b42 = new Image();
b42.src = "images/button-bestell-gruen.jpg";

b51 = new Image();
b51.src = "images/ichwillfliegen-blue.jpg";

b52 = new Image();
b52.src = "images/ichwillfliegen-green.jpg";

b61 = new Image();
b61.src = "images/geschenkgutschein-blue.jpg";

b62 = new Image();
b62.src = "images/geschenkgutschein-green.jpg";
}
spy = '';

function roll(a,b){
current = eval('document.images' + '[("but"+a)]');
if(spy != a && b != 0){
	current.src = eval('b' + a + '2.src');
	}
if(spy != a && b == 0){
	current.src = eval('b' + a + '1.src');
	
	}
}