InfoPath Dev

I need to be able to query the AD user from the browser, in my infopath form. Is there another method than the GetMyAdInfo method so that I can retrieve the logged in user and their associated groups? I do not want to require my users to use infopath, so that isnt an option for this solution.

Ill ask the question this way, how can I use a query from active directory to query against in my browswer form... I know I can do a soap connection to get the info, but every time I do it the way I know how in infopath, it complains.. I need to be able to hide sections based on the user group. Is this possible?