should be one of 
 <code> FTP.ASCII_FILE_TYPE </code>, <code> FTP.IMAGE_FILE_TYPE </code>,
 etc.  The file type only needs to be set when you want to change the
 type.  After changing it, the new type stays in effect until you change
 it again.  The default file type is <code> FTP.ASCII_FILE_TYPE </code>
 if this method is never called.
 <p></div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>fileType</code> - The <code> _FILE_TYPE </code> constant indcating the
                 type of file