application.rootURL

Hi.I had the old web site which is www.medicineonline.com
now I have a new look for that which the url is: www.healthon.com
my problem is although I delacre the url of the site on application.cfc like this:

<cfset application.rootPath = "/">
<cfset application.rootURL = " http://" & CGI.HTTP_HOST & application.rootPath>

but still all of my links on healthon.com goes to medicineonline.com.
what is the problem & how can I fix it?
thanks