Form session idle

Dear all,

I wanted to know that we are on R12.1.2 and use Logging to Application by frmservlet , Now if the frmservlet way users log in , hence the connection get established and didnt get disconnected , unless the connection if closed . Most of users dont close their Application , hence all the forms session are idle and consumes lot of CPU and Memory , if there any profile or setting which can be done to handle the situation , which will only kill the idle inactve session only .. Nothing else ..

Sumit Ghosh