window.Asc.plugin.button(id)

Defines the buttons used with the plugin and the plugin behavior when they are clicked. This method is called when any of the plugin buttons is clicked.

Name	Description	Type
id	Defines the button index in the "buttons" array of the plugin configuration config.json file. If id == -1, then the plugin considers that the 'Close window' cross button has been clicked or its operation has been somehow interrupted.	number

window.Asc.plugin.button = function (id) {
    this.executeCommand("close", '');
};