§ 245. Expenses incurred under article. All expenses incurred under this article coming within the annual appropriation therefor (as provided in section two hundred and forty-six of this article) shall be a charge against the municipality incurring the same, payable from the current funds of such municipality; but the local authorities may provide for the acquisition of lands or buildings for playgrounds or neighborhod recreation centers payable from the current funds or to be financed, in whole or in part, pursuant to the local finance law.