The present invention provides a gas-barrier film which is produced through applying a layer containing a metallic compound to a surface of a processed-polymer layer produced from a mixture of a polyalcohol and at least one polyacrylic polymer selected from the group consisting of polyacrylic acids and partially neutralized polyacrylic acids. One or more computing devices initiate the VoIP session between a plurality of devices. The storage medium includes data adapted for presentation on a first website. The third lens element has refractive power. The omnidirectional structural color pigment can be made from a plurality of flakes that have a multilayer structure, the pigment and the paint having a reflection band of less than 200 nanometers when viewed from angles between 0 to 45 degrees.