The board of trustees of any such school district, agricultural high school district or agricultural high school and junior college district, and the board of trustees of state institutions of higher learning, respectively, as the case may be, may, in their discretion, pay all or any part of the salary of all superintendents, principals, teachers and other employees during or for the period when any of the said schools, agricultural high schools, agricultural high schools and junior colleges, or institutions of higher learning are closed in accordance with the terms of this article, and funds shall be drawn from the same source or sources as such funds would be drawn to pay such items if the schools, agricultural high schools, agricultural high schools and junior colleges, or institutions of higher learning had not been closed.