JavaScript onkeyup camelcase vs lowercase
<p>I do not seem to find what version of a "onkeyup" is correct:</p>

<p>camelcase: <strong>onKeyUp</strong></p>

<p>or </p>

<p>lowercase: <strong>onkeyup</strong></p>

<p>[UPDATE]  <a href="http://www.w3.org/TR/html4/intro/sgmltut.html" rel="nofollow">http://www.w3.org/TR/html4/intro/sgmltut.html</a> mentions: </p>

<p>"Attribute names are always case-insensitive."</p>
