JavaScript Timed Functions: Call sequence of functions with given time delays

This object can call a sequence of functions with given time delays.

It can register a sequence of callback functions that are called after another with a given time intervals between them.

The time between each function invocation may be counted starting after the last function call is returned or before the last call was made, so the calls are performed with the exact time delays regardless of how long the function call took.

After the sequence of functions was completed, it may restart a new cycle back to the first function call or stop the function calls.