var ex = new Image ();
ex.src = '../img/bu_ex.gif';
var ex_hov1 = new Image ();
ex_hov1.src = '../img/bu_ex_hov1.gif';
var ex_hov2 = new Image ();
ex_hov2.src = '../img/bu_ex_hov2.gif';

var contact = new Image ();
contact.src = '../img/bu_contact.gif';
var contact_hov1 = new Image ();
contact_hov1.src = '../img/bu_contact_hov1.gif';
var contact_hov2 = new Image ();
contact_hov2.src = '../img/bu_contact_hov2.gif';

var munich = new Image ();
munich.src = '../img/bu_munich.gif';
var munich_hov1 = new Image ();
munich_hov1.src = '../img/bu_munich_hov1.gif';
var munich_hov2 = new Image ();
munich_hov2.src = '../img/bu_munich_hov2.gif';
	
function menuex () {
	window.document.images["ex"].src=ex_hov1.src;
	window.setTimeout ('window.document.images["ex"].src=ex_hov2.src;',100);
	window.setTimeout ('window.document.images["ex"].src=ex_hov1.src;',300);
	window.setTimeout ('window.document.images["ex"].src=ex.src;',400);
	}
	
function menucontact () {
	window.document.images["contact"].src=contact_hov1.src;
	window.setTimeout ('window.document.images["contact"].src=contact_hov2.src;',100);
	window.setTimeout ('window.document.images["contact"].src=contact_hov1.src;',300);
	window.setTimeout ('window.document.images["contact"].src=contact.src;',400);
	}

function menumunich () {
	window.document.images["munich"].src=munich_hov1.src;
	window.setTimeout ('window.document.images["munich"].src=munich_hov2.src;',100);
	window.setTimeout ('window.document.images["munich"].src=munich_hov1.src;',300);
	window.setTimeout ('window.document.images["munich"].src=munich.src;',400);
	}

function menuberlin () {
	window.document.images["berlin"].src=berlin_hov1.src;
	window.setTimeout ('window.document.images["berlin"].src=berlin_hov2.src;',100);
	window.setTimeout ('window.document.images["berlin"].src=berlin_hov1.src;',300);
	window.setTimeout ('window.document.images["berlin"].src=berlin.src;',400);
	}

function statusbar () {
	window.status='Dina4 Projekte atelier berlin - Falckensteinstrasse 47/48, DE-10997 Berlin'; 
	window.setTimeout("statusbar()",1000);
	return true
	};