You can use
jTalk plugin for that.
<script type="text/javascript">
$(document).ready(function() {
$('#myelement').jTalk();
});
</script>
<a href="#" id="myelement">This will be spoken</a>
For more info : Speech-enable your website
UPDATE
You can download the whole web site using below link and after the download click 'index' page for browse the web site offline. Plz let me know if you have any issues.
jTalk
I hope this will help to you.