[Auth_Group] checks the current authentication values which were sent with the HTTP header. The tag requires one parameter which is the name of a group in Lasso security. If the current user belongs to that group then the page continues serving normally.

Otherwise, the visitor is prompted with an authentication dialog. They will not be able to see the format file which contains this tag unless they provide the specified username and password.

The optional realm parameter will be used by the client's Web browser to identify how the username and password will be used. If the same realm parameter is used on multiple pages the browser will re-transmit the username and password automatically without re-prompting the client. The realm defaults to 'Lasso Security'.

The [Auth_Group] tag will usually be one of the first tags in a format file.

The group can alternately be specified as an array. If the current user belongs to any one of the groups listed then they will be allowed to view the page. If the group parameter is omitted then a user who belongs to any group other than "Any User" will be allowed to view the page.