}, false);
        updateSelectedFlags();
    }
    E('#btn-output-clear').addEventListener('click', ()=>{
        eOut.innerText = '';
    });
    E('#btn-reset-flags').addEventListener('click',()=>{
        eFlags.value = '';
        updateSelectedFlags();
    });
    E('#btn-run').addEventListener('click',function(){
        log("Running speedtest1. UI controls will be disabled until it completes.");
        mPost('run', getSelectedFlags());
    });

    const eControls = E('#ui-controls');
    /** Updat