Abstract: A method for calculating a Hijri religious calendar based on the visibility of a crescent moon. The method comprises using a camera and/or weather reports to determine the weather conditions in a region. Preferably, the camera view and the weather report are available via the Internet.

Abstract: A conference session controller connected to user terminals receives signals representing each user accessing an electronic conference session. The session controller assigns each user to a particular class from among a plurality of classes and automatically performs a function to control an aspect of participation in the electronic conference session for each user assigned to a selected class of the plurality of classes. A method comprises initiating the teleconference between participants interconnected by electronic terminals, associating each participant with a class among a plurality of classes, and terminating the teleconference for participants of a selected class, while continuing the teleconference for one or more other classes of the plurality of classes. In this way, a conference leader is provided a way to secure the conference for desired participants with confidence that users of a selected class have been excluded.

Abstract: A method for calculating a Hijri religious calendar based on the visibility of a crescent moon. The method comprises using a camera and/or weather reports to determine the weather conditions in a region. Preferably, the camera view and the weather report are available via the Internet.