Stops putting data frames on the ring
Erases the frame of sending and receiving station
position of sending, receiving and verifying station
(in general, sending == verifying)
sending and receiving station
Prints a red colored message line in the center
Sets what a mouse click on a station will produce
Opens a new HTML-page with help
TODO: This might not work, especially if the appletviewer is
used, solution: open a new window and display the text in it
class SpeedSelect draws a dialog frame to select the animation speed
Generates the tokenclass and starts the whole animation
class station handles all parameters of net stations
Stops the animation and sets the initial values