javascipt to XPCOM

[Rodrigue Butaye]

Hi,

I'm new with XPCOM technology and XPConnect.
I want to get some info from an XPCOM component. The code works well
when I load the file from my filesystem but not when I browse the file
from the website.

I've got an error : enablePrivilege not granted (when the file is
loaded from the locale filesystem a prompt appears to ask for
privileges and not when coming from the website).

The code is here : 

<script language='javascript'>
try
  {
     netscape.security.PrivilegeManager.enablePrivilege("UniversalXPConnect");
     var gDirServiceProp =
     
Components.classes["@mozilla.org/file/directory_service;1"].getService(Components.interfaces.nsIProperties);
     var gProfileDir =
gDirServiceProp.get("ProfD",Components.interfaces.nsIFile);

       alert('Your dir is ' + gProfileDir.path);
     }
  catch (e)
  {
    alert ("error = " + e);
  }
</script>

Thanks a lot by advance,

Rodrigue Butaye