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19 lines
458 B
HTML
19 lines
458 B
HTML
<!DOCTYPE html>
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<body>
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<html>
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<select id="test" size="8">
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</select>
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<script>
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var optgroup = document.createElement("optgroup");
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optgroup.setAttribute('label', 'An optgroup');
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var option = document.createElement("option");
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var optionText = document.createTextNode("An option");
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option.appendChild(optionText);
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var select = document.getElementById("test");
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optgroup.appendChild(option);
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select.appendChild(optgroup);
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</script>
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</body>
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</html>
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