function registriere(){ 
    if (document.addEventListener){   // allgemeine Ereignisbehandlung nach W3C
		window.document.images[1].onmouseover = function() {Wexeln(1, bild2);};
		window.document.images[1].onmouseout = function() {Wexeln(1, bild1);};
		window.document.images[2].onmouseover = function() {Wexeln(2, bild4);};
		window.document.images[2].onmouseout = function() {Wexeln(2, bild3);};
		//window.document.images[3].onmouseover = function() {Wexeln(3, bild6);};
		//window.document.images[3].onmouseout = function() {Wexeln(3, bild5);};
		window.document.images[4].onmouseover = function() {Wexeln(4, bild8);};
		window.document.images[4].onmouseout = function() {Wexeln(4, bild7);};
		window.document.images[5].onmouseover = function() {Wexeln(5, bild10);};
		window.document.images[5].onmouseout = function() {Wexeln(5, bild9);};
		window.document.images[6].onmouseover = function() {Wexeln(6, bild12);};
		window.document.images[6].onmouseout = function() {Wexeln(6, bild11);};
		window.document.images[7].onmouseover = function() {Wexeln(7, bild14);};
		window.document.images[7].onmouseout = function() {Wexeln(7, bild13);};
		window.document.images[8].onmouseover = function() {Wexeln(8, bild16);};
		window.document.images[8].onmouseout = function() {Wexeln(8, bild15);};
		window.document.images[11].onmouseover = function() {Wexeln(12, bild18);};
		window.document.images[11].onmouseout = function() {Wexeln(12, bild17);};
		window.document.images[12].onmouseover = function() {Wexeln(12, bild18);};
		window.document.images[12].onmouseout = function() {Wexeln(12, bild17);};
  	} 
    else if (document.attachEvent){ // Spezielle Version für IE
		window.document.images[1].attachEvent("onmouseover", function() {Wexeln(1, bild2);}, false);
     	window.document.images[1].attachEvent("onmouseout", function() {Wexeln(1, bild1);}, false);
		window.document.images[2].attachEvent("onmouseover", function() {Wexeln(2, bild4);}, false);
     	window.document.images[2].attachEvent("onmouseout", function() {Wexeln(2, bild3);}, false);
		//window.document.images[3].attachEvent("onmouseover", function() {Wexeln(3, bild6);}, false);
     	//window.document.images[3].attachEvent("onmouseout", function() {Wexeln(3, bild5);}, false);
		window.document.images[4].attachEvent("onmouseover", function() {Wexeln(4, bild8);}, false);
     	window.document.images[4].attachEvent("onmouseout", function() {Wexeln(4, bild7);}, false);
		window.document.images[5].attachEvent("onmouseover", function() {Wexeln(5, bild10);}, false);
     	window.document.images[5].attachEvent("onmouseout", function() {Wexeln(5, bild9);}, false);
		window.document.images[6].attachEvent("onmouseover", function() {Wexeln(6, bild12);}, false);
     	window.document.images[6].attachEvent("onmouseout", function() {Wexeln(6, bild11);}, false);
		window.document.images[7].attachEvent("onmouseover", function() {Wexeln(7, bild14);}, false);
     	window.document.images[7].attachEvent("onmouseout", function() {Wexeln(7, bild13);}, false);
		window.document.images[8].attachEvent("onmouseover", function() {Wexeln(8, bild16);}, false);
     	window.document.images[8].attachEvent("onmouseout", function() {Wexeln(8, bild15);}, false);
		window.document.images[11].attachEvent("onmouseover", function() {Wexeln(12, bild18);}, false);
     	window.document.images[11].attachEvent("onmouseout", function() {Wexeln(12, bild17);}, false);
		window.document.images[12].attachEvent("onmouseover", function() {Wexeln(12, bild18);}, false);
     	window.document.images[12].attachEvent("onmouseout", function() {Wexeln(12, bild17);}, false);
    }
    else { 
      	status = "Fehler"; 
    } 
  }
registriere();