I've been reading this page on accessing event handlers and avoiding the inline ones. Suppose I want to hover over a link and make it display something else, I thought this is what I would put in the <head>:
<script type="text/javascript">
var x = document.getElementById('question');
x.onmouseover = function() {document.getElementById('answer').style.display='inline'}
x.onmouseout = function() {document.getElementById('answer').style.display='none'}
The HTML being:
<a id="question" href="#">Question</a>
<span id="answer" style="display:none;">The answer is 42</span>
I've reread the article in the link but to no avail, I don't know what is wrong.