Code: <a href="java script:runAccordion('block','html')">HTML/XHTML </a>

<div id="html" name="html">
some text
</div>

<script language="JavaScript" type="text/javascript">
<!--
function runAccordion(x) {
var y = document.getElementById('chord');
y.style.display = x;
}
// -->
</script>

Code: <a href="java script:runAccordion('block','html')">HTML/XHTML </a>

<div id="html" name="html">
some text
</div>

<a href="java script:runAccordion('block','css')">CSS</a>

<div id="css" name="css">
some more text
</div>

<script language="JavaScript" type="text/javascript">
<!--
function runAccordion(x,z) {
var y = document.getElementById(z);
y.style.display = x;
}
// -->
</script>