Prevent url encoding?

I have a page that includes some javascript that passes the user to another site through the use of a window.open command. The site I pass them to requires two arguments be passed in the HTTP header so the javascript I write looks like this: http://www.newSite.com/search.aspx?Keywords=myKeyword&orgID=12345

However, when this code executes from within wordpress the url that gets called is:
http://www.newSite.com/search.aspx?Keywords=myKeyword&#038:orgID=12345
Note that the ampersand that separates the Keywords parameter and the orgID parameter has been encoded to &#038. As a result, when newSite.com sees the HTTP header it does not know what the orgID is.

Is there some way I can tell wordpress to make my window.open call as it is without modifying the url?

Thanks,

– Niz