encrypted email disappears when Contribute renders page

["barbarelladesign" <webforumsuser@xxxxxxxxxxxxxx>]

It's a case of the disappearing email address. I have used Enkoder software to 
javascript encrypt emails so as to prevent spam. It works fine in the 
dreamweaver template - but the email address completely disappears when the 
template is then used to create a new html file. Has anyone come across this?

 Maybe the best thing is to compare pages. The email address should go at the 
bottom of every page - see
 http://www.mslexia.co.uk/magazine/interviews/interview_33.html

 However, it disappears when the page is derived from a dwt via Contribute - 
see again at the bottom of the page:
 http://www.mslexia.co.uk/index.html

 Does anyone know enough about javascript in Contribute to help me out here. 
I'm a bit stuck - any advice much appreciated.