var overviewMenu1Out = new Image();
overviewMenu1Out.src = '/all/transitional/all/tour/image/' + language + '/overview/1_a.jpg';
var overviewMenu1Over = new Image();
overviewMenu1Over.src = '/all/transitional/all/tour/image/' + language + '/overview/1_na.jpg';

var overviewMenu2Out = new Image();
overviewMenu2Out.src = '/all/transitional/all/tour/image/' + language + '/overview/2_a.jpg';
var overviewMenu2Over = new Image();
overviewMenu2Over.src = '/all/transitional/all/tour/image/' + language + '/overview/2_na.jpg';

var overviewMenu3Out = new Image();
overviewMenu3Out.src = '/all/transitional/all/tour/image/' + language + '/overview/3_a.jpg';
var overviewMenu3Over = new Image();
overviewMenu3Over.src = '/all/transitional/all/tour/image/' + language + '/overview/3_na.jpg';

var overviewMenu4Out = new Image();
overviewMenu4Out.src = '/all/transitional/all/tour/image/' + language + '/overview/4_a.jpg';
var overviewMenu4Over = new Image();
overviewMenu4Over.src = '/all/transitional/all/tour/image/' + language + '/overview/4_na.jpg';

var overviewMenu5Out = new Image();
overviewMenu5Out.src = '/all/transitional/all/tour/image/' + language + '/overview/5_a.jpg';
var overviewMenu5Over = new Image();
overviewMenu5Over.src = '/all/transitional/all/tour/image/' + language + '/overview/5_na.jpg';

var overviewMenuaOut = new Image();
overviewMenuaOut.src = '/all/transitional/all/tour/image/' + language + '/overview/a_a.gif';
var overviewMenuaOver = new Image();
overviewMenuaOver.src = '/all/transitional/all/tour/image/' + language + '/overview/a_na.gif';

var overviewMenubOut = new Image();
overviewMenubOut.src = '/all/transitional/all/tour/image/' + language + '/overview/b_a.gif';
var overviewMenubOver = new Image();
overviewMenubOver.src = '/all/transitional/all/tour/image/' + language + '/overview/b_na.gif';

var overviewMenucOut = new Image();
overviewMenucOut.src = '/all/transitional/all/tour/image/' + language + '/overview/c_a.gif';
var overviewMenucOver = new Image();
overviewMenucOver.src = '/all/transitional/all/tour/image/' + language + '/overview/c_na.gif';

function setOverviewImg(nr) {
   document.images['overviewMenu' + nr].src = eval('overviewMenu' + nr + 'Over').src;
   document.getElementById("overview_" + nr).style.display = 'block';
}

function resetOverviewImg(img) {
   document.images['overviewMenu' + img].src = eval('overviewMenu' + img + 'Out').src;
   document.getElementById("overview_" + img).style.display = 'none';
}