hash in byline converts to slash.

Hello,

I am trying to add addThis code in byline of every post. I am not using the addThis plugin. For some reason it is not working for me.

Part of the addThis code has a javascript url that contains hash (#):

... addthis_widget.js#username=aUsername ...

When I add the code in to the byline, for some reason the hash (#) converts to slash (\) on the webpages.

Any ideas?