remove i-(i+1)l from your moveCamera() function...

now i want you to add a new function:

function change_Cam()
{
i++;
i%=6; //cycle between 6 views
}

now somewhere in your main function, add:

on_c=change_Cam;

you should be calling your void moveCamera() function from inside the while loop though, that or put all its instructions within a while loop