Browser Hangs when Opening and closing ArcTest Demo. (Y* TC4_01)

Browser Hangs after running for 19 hours.
Test case YokogawaTC4_01 ( Opening and Closign ArcTest Demo using Java Script). Opening and close interval 5 sec.

Data Points recorded while starting the test:
Handle Count : 684
Private Bytes: 38473728
Working Set : 37507072
GDI : 349

Data points recorded just before hang:
Handle Count : 32390
Private Bytes: 281468928
Working Set : 286400512
GDI : 9995
(Can observe a heavy memory , GDI and Handle Count leak)

ReproduceSteps :
Test case Available with Developers
a) Run TC04_01 for 24 hours set refresh interval as 5 sec .