window.Asc.plugin.executeMethod ("GetCurrentContentControl", callback)
Defines the method that allows getting the identifier of the selected
content control (i.e. the content control where the mouse cursor is currently positioned).
This method should be used in the following way:
window.Asc.plugin.executeMethod ("GetCurrentContentControl");
The method returns the content control internal ID in the string format.
document.getElementById("buttonIDChangeState").onclick = function () {
var _Control = [];
window.buttonIDChangeState_click = true;
window.Asc.plugin.executeMethod("GetCurrentContentControl");
};