JESS: Clear screen

"ANA TANASESCU" <[email protected]>
Newsgroups gmane.comp.java.jess
Message-ID <6509_1283174304_o7UDGg2b006510_173690.30717.qm@web52003.mail.re2.yahoo.com> 
Hello everyone,

I am writing a program that uses the WHILE function. When the user select a certain option the program displays a message and fires some rules.
My question is which is the function in Jess for clearing the screen so that my screen could be clear whenever I choose a new option.

Best regards,
Ana
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