function flugschule() {
document.images[1].src='./images/c_cpt_x2.jpg';
document.images[2].src='./images/ultralight2.jpg';
document.images[3].src='./images/c_ct_l03-2.jpg';
}
function agrarflug() {
document.images[1].src='./images/DSC01293.jpg';
document.images[2].src='./images/agrarflug-2.jpg';
document.images[3].src='./images/DSC01295.jpg';

}
function waldbrandfrueherkennung() {
document.images[1].src='./images/waldbrand-3.jpg';
document.images[2].src='./images/waldbrand.jpg';
document.images[3].src='./images/charter1.jpg';

}
function charter() {
document.images[1].src='./images/charter4.jpg';
document.images[2].src='./images/charter3.jpg';
document.images[3].src='./images/charter2.jpg';

}
function luftbildaufnahmen() {
document.images[1].src='./images/luftbild-3.jpg';
document.images[2].src='./images/luftbild-4.jpg';
document.images[3].src='./images/luftbild-9.jpg';

}
function rundfluege() {
document.images[1].src='./images/rundflug.jpg';
document.images[2].src='./images/rundflug-5.jpg';
document.images[3].src='./images/rundflug-6.jpg';
}

function verkehr() {
document.images[1].src='./images/verkehr-1.jpg';
document.images[2].src='./images/verkehr-5.jpg';
document.images[3].src='./images/verkehr-4.jpg';
}