Thus I believe that you should not have any troubles running it. If you do, please let me know. Using the program Click on file dictionary.html to start. You will probably be able to use the program from the very beginning. Here are some explanations you might find useful, though.
Direct mode is the one where one word is given and several definitions are offered as a choice.
The reverse mode offers an explanation and several words to select from. Order refers to the order in which words will be tested. Selection size represents the number of choices that are offered. Valid values are from 2 to 10. It turns out that if the loss of focus is due to the user clicking to another frame in the browser, this event is not trigerred.