Skype Button

Trying to add Skype button in Zoho Support customer portal using this script (From Skype site):

<script type="text/javascript" src=" http://www.skypeassets.com/i/scom/js/skype-uri.js"></script>
<div id="SkypeButton_Call_xxx">
<script type="text/javascript">
    Skype.ui({
      "name": "call",
      "element": "SkypeButton_Call_xxx",
      "participants": ["xxx"],
      "imageSize": 32
    });
</script>
</div>

(I've replaced Skype user name with xxx)

HTML gets mangled by Zoho support site.
Any ideas?