crear en HTML el conteo de forma ascendente y descendente del 1 al 10

Script
function ascendente(from, to) {
    var from = from || 1;
    var to = to || 10;
    var output = '';
    for (var i = from; i <= to; i++) {
        output += i + '<br>';
    }
    return output;
}

function descendente(from, to) {
    var from = from || 1;
    var to = to || 10;
    var output = '';
    for (var i = to; i >= from; i--) {
        output += i + '<br>';
    }
    return output;
}

document.write(ascendente(1, 10));
document.write(descendente(1, 10));