function turnOff(dname) {
document.getElementById(dname).style.display = 'none';
}
function turnOn(dname) {
document.getElementById(dname).style.display = 'block';
}
function riderOff(dname) {
document.getElementById(dname).style.borderBottom = '1px solid #B2B2B2';
document.getElementById(dname).style.backgroundColor = '#ececec';
}
function riderOn(dname) {
document.getElementById(dname).style.borderBottom = '1px solid #ffffff';
document.getElementById(dname).style.backgroundColor = '#ffffff';
}