var loaded:Boolean = API.loadUserPage(user_id:Number, user_name:String);
This call works one of 2 ways. If you have provided a valid user_id and a user_name the API will open the user page for the user you specified (User info can be pulled from features like high scores and save data).
If no paramenetsr are passed, the local user is playing from a site with NewgroundsAPI integration and they have a valid user session, this will open their user page in a new browser window.
If no user page is loaded, this call will return false.