Encrypting Password being passed in SOAP envelope through Javascript

Hi,

I am invoking a web service call through a button, that I have created on a CRM OD report.

The soap envelope that we are passing in javascript also contains the User Name and Password as follows:-

<wsse:Username>COMPANY/UID</wsse:Username><wsse:Password Type="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-username-token-profile-1.0#PasswordText">PASSWORD</wsse:Password>

Is there a more secure way of providing this password (encryption) as this is a big security risk ... apparently PasswordDigest is not supported by CRM OD servers.

Any alternate approach/ideas are welcome.

Regards,

Nakul