function OpenMap() {
    document.getElementById('race_map').style.display = 'block';
}

function CloseMap() {
    document.getElementById('race_map').style.display = 'none';
}

function OpenHonours() {
    document.getElementById('race_honours').style.display = 'block';
}

function CloseHonours() {
    document.getElementById('race_honours').style.display = 'none';
}

function OpenReg() {
    document.getElementById('race_register').style.display = 'block';
}

function CloseReg() {
    document.getElementById('race_register').style.display = 'none';
}

function pageNav(pageName) {
    document.getElementById('nav_' + pageName).style.backgroundPosition = 'bottom';
}