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<p>I join your program with spellcheck enabled.</p>
<p>I've derived a class TTextInputWidget_with_spellcheck from
TTextInputWidget.<br>
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<p>On the first or second line of your html file you'll need to set
lang to cs for Czech <code><html lang="cs"></code></p>
<p>On my Firefox, I've only the french and english language packages
installed, but after modifying <code><html lang="cs"> </code>when
I right click in a text input in your program, the language is set
on Czech.</p>
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<code></code></p>
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