function header(page) {
    document.write('<a href="Home.html"');
    if (page == "home") document.write(' class="active"');
    document.write('>Home</a> | ');

    document.write('<a href="index.html"');
    if (page == "upcoming") document.write(' class="active"');
    document.write('>Next Events</a> | ');

    document.write('<a href="Travel.html"');
    if (page == "links") document.write(' class="active"');
    document.write('>Traveling Singles</a> | ');

    document.write('<a href="Links.html"');
    if (page == "links") document.write(' class="active"');
    document.write('>Links</a> | ');

    document.write('<a href="Photos.html"');
    if (page == "photos") document.write(' class="active"');
    document.write('>Photos</a>');
    }