flashlight animation

  Hi

i want to make animation with flashlight plugin.

I want to open flashlight and close and again open and open again and then i want to close

so i try to call

switchon();

switchoff();

switchon();

switchon();

switchon();

switchon();

switchoff();

switchoff();

switchoff();

but it give error  

and then i use setInterval

 but it still give error 

in admin panel admin will insert open or close info in array  then i will process that command