| 摘要 |
A method comprising creating association data that associates a content element and active time period data, the content element being associated with an electronic content, and the active time period data specifying a time period during which the electronic content includes the content element, and storing the association data. A second method comprising accessing electronic content, the electronic content being associated with a content element and active time period data, the active time period data specifying a time period during which the association between the electronic content and the content element is active, receiving current time period data, using the current time period data and the active time period data, determining whether the association between the electronic content and the content element is active, and selectively rendering the content element, based on the determination. |
