var companyName = "Cristales Ebenor S.A.";
var directions = "Mapa e instrucciones de cómo llegar";

function addCompanyName() {
    if (!(document.getElementById && document.getElementsByTagName)) {
        return false;
    }
    var header = document.getElementById("header");
    var heading = header.getElementsByTagName("h1")[0];
    var span = document.createElement("span");
    var text = document.createTextNode(companyName);
    span.appendChild(text);
    heading.appendChild(span);
}

function addSideBar1() {
    if (!document.getElementById) {
        return false;
    }
    var contactForm = document.getElementById("contactForm");
    var sidebar = createSideBar();
    contactForm.appendChild(sidebar);
}

function addSideBar2() {
    if (!document.getElementById) {
        return false;
    }
    var gallery = document.getElementById("contentGallery");
    var sidebar = createSideBar();
    gallery.appendChild(sidebar);
}

function createSideBar() {
    if (!(document.getElementById && document.getElementsByTagName)) {
        return false;
    }
    var footer = document.getElementById("footer");
    var sidebar = footer.cloneNode(true);
    sidebar.setAttribute("id", "sidebar");
    var heading = sidebar.getElementsByTagName("h2")[0];
    heading.firstChild.nodeValue = companyName;
    var list = sidebar.getElementsByTagName("dl")[0];
    list.className = "";
    var anchor = sidebar.getElementsByTagName("a")[2];
    anchor.firstChild.nodeValue = directions;
    return sidebar;
}