nada, no me funciona, mira:
<head>
<script language="JavaScript" type="text/JavaScript" src="../../js/funciones.js"></script>
</head>
<body>
<a href="aragon/aragon.htm" target="mainFrame" id="foldheader" onclick="javascript
:unFold(1);"><span class="letra">Aragón</span></a>
</body>