DOC2ASCII - converts the input doc or docx or
    rtf or html or odt file to ASCII
    RESULT = DOC2ASCII(FILENAME,DIRECTORY) converts the input  
    files to ASCII, using the Apache POI which is a Java 
    api for text conversion and moves the converted file into directory. 
    RESULT returns a success indicator, e.g. -2 if the input 
    file does not exist or has a wrong format, -1 if JRE is not 
    installed or the path isn't set, 0 if the api didn't 
    work properly, and 1 if the conversion was successful.

  Copyright 2011 Eugenia Maria Kontopoulou, Dimitrios Zeimpekis, 
                 Efstratios Gallopoulos