b00st
public html v1 · immutable<input onchange="if(!isNaN(document.getElementById('input0').value)){ document.getElementById('box0').disabled = false }else{ document.getElementById('box0').disabled = true }" /><input onchange="if(!isNaN(document.getElementById('input0').value)){ document.getElementById('box0').disabled = false }else{ document.getElementById('box0').disabled = true }" />