/*  This file is part of the Online Recruitment System for Economic Experiments (ORSEE).

    Copyright (c) 2003-2024 Ben Greiner (m@ilben.de).

    Author(s): Ben Greiner

    ORSEE is citeware.

    Redistribution and use in source and binary forms, with or without
    modification, are permitted provided that the following conditions
    are met:

    1. The use of derivative works is restricted in the following way
       in accordance with standard academic citation practices:
       Any academic report, publication, or other academic disclosure of
       results obtained with the use of this software will acknowledge the
       software's use by an appropriate citation of the following
       publication (or an updated version):

         Ben Greiner (2015), 
         Subject Pool Recruitment Procedures: Organizing Experiments with ORSEE, 
         Journal of the Economic Science Association 1 (1), 114-125.
         http://link.springer.com/article/10.1007/s40881-015-0004-4

    2. Redistributions of source code must retain the above copyright
       notice, this list of conditions and the following disclaimer.

    3. Redistributions in binary form must reproduce the above copyright
       notice, this list of conditions and the following disclaimer in the
       documentation and/or other materials provided with the distribution.

    4. The names of the author(s) and/or the software must not be
       used to endorse or promote products derived from this software
       without prior written permission.

    5. Products derived from this software may not be called "ORSEE",
       nor may "ORSEE" appear in their name, without prior written
       permission of the author(s).

    THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESSED OR IMPLIED
    WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
    MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
    IN NO EVENT SHALL THE AUTHOR(S) BE LIABLE FOR ANY DIRECT, INDIRECT, 
    INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
    BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 
    LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER 
    CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 
    LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY
    WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
    OF SUCH DAMAGE.

*/