// JavaScript Document
function chhg1() {
document.getElementById('nav1').style.backgroundImage="url('images/reiter1_aktiv.png')";
document.getElementById('nav1a').style.color="#FFFFFF";
document.getElementById('nav2').style.backgroundImage="url('images/reiter1_unaktiv.png')";
document.getElementById('nav2a').style.color="#333333";
document.getElementById('nav3').style.backgroundImage="url('images/reiter1_unaktiv.png')";
document.getElementById('nav3a').style.color="#333333";
document.getElementById('nav4').style.backgroundImage="url('images/reiter1_unaktiv.png')";
document.getElementById('nav4a').style.color="#333333";
}
function klein() {
document.getElementById('nav1').style.backgroundImage="url('images/reiter1_aktiv.png')";
document.getElementById('nav1a').style.color="#FFFFFF";
document.getElementById('nav2').style.backgroundImage="url('images/reiter1_unaktiv.png')";
document.getElementById('nav2a').style.color="#333333";
}
function klein2() {
document.getElementById('nav2').style.backgroundImage="url('images/reiter1_aktiv.png')";
document.getElementById('nav2a').style.color="#FFFFFF";
document.getElementById('nav1').style.backgroundImage="url('images/reiter1_unaktiv.png')";
document.getElementById('nav1a').style.color="#333333";
}

function klein3() {
document.getElementById('nav3').style.backgroundImage="url('images/reiter1_aktiv.png')";
document.getElementById('nav3a').style.color="#FFFFFF";
document.getElementById('nav4').style.backgroundImage="url('images/reiter1_unaktiv.png')";
document.getElementById('nav4a').style.color="#333333";
}
function klein4() {
document.getElementById('nav4').style.backgroundImage="url('images/reiter1_aktiv.png')";
document.getElementById('nav4a').style.color="#FFFFFF";
document.getElementById('nav3').style.backgroundImage="url('images/reiter1_unaktiv.png')";
document.getElementById('nav3a').style.color="#333333";
}


function chhg2() {
document.getElementById('nav2').style.backgroundImage="url('images/reiter1_aktiv.png')";
document.getElementById('nav2a').style.color="#FFFFFF";
document.getElementById('nav1').style.backgroundImage="url('images/reiter1_unaktiv.png')";
document.getElementById('nav1a').style.color="#333333";
document.getElementById('nav3').style.backgroundImage="url('images/reiter1_unaktiv.png')";
document.getElementById('nav3a').style.color="#333333";
document.getElementById('nav4').style.backgroundImage="url('images/reiter1_unaktiv.png')";
document.getElementById('nav4a').style.color="#333333";

}
function chhg3() {
document.getElementById('nav3').style.backgroundImage="url('images/reiter1_aktiv.png')";
document.getElementById('nav3a').style.color="#FFFFFF";
document.getElementById('nav2').style.backgroundImage="url('images/reiter1_unaktiv.png')";
document.getElementById('nav2a').style.color="#333333";
document.getElementById('nav1').style.backgroundImage="url('images/reiter1_unaktiv.png')";
document.getElementById('nav1a').style.color="#333333";
document.getElementById('nav4').style.backgroundImage="url('images/reiter1_unaktiv.png')";
document.getElementById('nav4a').style.color="#333333";

}
function chhg4() {
document.getElementById('nav4').style.backgroundImage="url('images/reiter1_aktiv.png')";
document.getElementById('nav4a').style.color="#FFFFFF";
document.getElementById('nav2').style.backgroundImage="url('images/reiter1_unaktiv.png')";
document.getElementById('nav2a').style.color="#333333";
document.getElementById('nav3').style.backgroundImage="url('images/reiter1_unaktiv.png')";
document.getElementById('nav3a').style.color="#333333";
document.getElementById('nav1').style.backgroundImage="url('images/reiter1_unaktiv.png')";
document.getElementById('nav1a').style.color="#333333";
}


function chhg1_gross() {
document.getElementById('nav1').style.backgroundImage="url('images/reiter2_aktiv.png')";
document.getElementById('nav1a').style.color="#FFFFFF";
document.getElementById('nav2').style.backgroundImage="url('images/reiter1_unaktiv.png')";
document.getElementById('nav2a').style.color="#333333";
}

function chhg2_gross() {
document.getElementById('nav2').style.backgroundImage="url('images/reiter1_aktiv.png')";
document.getElementById('nav2a').style.color="#FFFFFF";
document.getElementById('nav1').style.backgroundImage="url('images/reiter2_unaktiv.png')";
document.getElementById('nav1a').style.color="#333333";
}