function load() {
    const versions = document.querySelectorAll('.navbar .dropdown ul a');
    const basePath = '';
    const types = [`${basePath}/docs/next`, `${basePath}/docs`];
    let i = 0;

    for (const el of versions) {
        const match = el.href.match(/\/docs\/(\d+\.\d+(\.\d+)?)$/) || el.href.match(/\/docs\/(\d+\.\d+(\.\d+)?)/);

        if (!types[i++] && !match) {
            continue;
        }

        const version = (types[i++] || match[0]).replace('/docs', '/api');

        if (el.classList.contains('api-version-bound')) {
            continue;
        }

        el.addEventListener('click', (e) => {
            if (version && window.location.pathname.startsWith(`${basePath}/api`)) {
                window.location.href = version;
                e.preventDefault();
            }
        });
        el.classList.add('api-version-bound');
    }
}

setInterval(() => {
    if (document.querySelectorAll('.navbar .dropdown ul a').length > 0) {
        load();
    }
}, 500);