  The paper introduces sufficient conditions for input-to-state stability (ISS)
of a class of impulsive systems with jump maps that depend on time. Such
systems can naturally represent an interconnection of several impulsive systems
with different impulse time sequences. Using a concept of ISS-Lyapunov function
for subsystems a small-gain type theorem equipped with a new dwell-time
condition to verify ISS of an interconnection has been proven.
