function tzi_startup () {
    var headerDiv = document.getElementById("header");
    var footerDiv = document.getElementById("footer");
    if (!headerDiv || !footerDiv) return;

    headerDiv.appendChild(document.createElement("div")).setAttribute("class", "tzi-bg");
    headerDiv.appendChild(document.createElement("div")).setAttribute("class", "tzi-kante");
    var headObj = document.createElement("object");
    headObj.setAttribute("type", "image/svg+xml");
    headObj.setAttribute("data", "ui/tzi/tzi.svg");
    headerDiv.appendChild(headObj);

    var footObj = document.createElement("object");
    footObj.setAttribute("type", "image/svg+xml");
    footObj.setAttribute("data", "ui/tzi/uni-bremen.svg");
    footerDiv.appendChild(footObj);
}

var _old_onload = window.onload;
window.onload = function() { _old_onload(); tzi_startup(); }