var checkbox1, checkbox2;
function forceOrder( el ) {
if ( checkbox1 === undefined ){
checkbox1 = document.getElementById('orderimportant1');
checkbox2 = document.getElementById('orderimportant2');
}
checkbox1.checked = !el.checked;
checkbox2.checked = !el.checked;
checkbox1.disabled = el.checked;
checkbox2.disabled = el.checked;
}
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