var allItems = ["item01", "item02", "item03", "item04", "item05", "bild01", "bild02", "bild03", "bild04", "bild05"];
function show() {
for(var i=0; i<allItems.length ; i++) {
document.getElementById(allItems[i]).style.display = "none";
}
for(var i=0; i<arguments.length ; i++) {
document.getElementById(arguments[i]).style.display = "block";
}
}

function n01() {
document.getElementById("n01").style.background = "url(../images/titel_hover.jpg)";
document.getElementById("n02").style.background = "url(../images/titel.jpg)";
document.getElementById("n03").style.background = "url(../images/titel.jpg)";
document.getElementById("n04").style.background = "url(../images/titel.jpg)";
document.getElementById("n05").style.background = "url(../images/titel.jpg)";
}

function n02() {
document.getElementById("n02").style.background = "url(../images/titel_hover.jpg)";
document.getElementById("n01").style.background = "url(../images/titel.jpg)";
document.getElementById("n03").style.background = "url(../images/titel.jpg)";
document.getElementById("n04").style.background = "url(../images/titel.jpg)";
document.getElementById("n05").style.background = "url(../images/titel.jpg)";
}

function n03() {
document.getElementById("n03").style.background = "url(../images/titel_hover.jpg)";
document.getElementById("n01").style.background = "url(../images/titel.jpg)";
document.getElementById("n02").style.background = "url(../images/titel.jpg)";
document.getElementById("n04").style.background = "url(../images/titel.jpg)";
document.getElementById("n05").style.background = "url(../images/titel.jpg)";
}

function n04() {
document.getElementById("n04").style.background = "url(../images/titel_hover.jpg)";
document.getElementById("n01").style.background = "url(../images/titel.jpg)";
document.getElementById("n02").style.background = "url(../images/titel.jpg)";
document.getElementById("n03").style.background = "url(../images/titel.jpg)";
document.getElementById("n05").style.background = "url(../images/titel.jpg)";
}

function n05() {
document.getElementById("n05").style.background = "url(../images/titel_hover.jpg)";
document.getElementById("n01").style.background = "url(../images/titel.jpg)";
document.getElementById("n02").style.background = "url(../images/titel.jpg)";
document.getElementById("n03").style.background = "url(../images/titel.jpg)";
document.getElementById("n04").style.background = "url(../images/titel.jpg)";
}