<div dir="ltr"><div><div>Thanks Greg K-H and Greg Freemyer.<br><br></div>You gave me helpful tips to start.<br><br></div>Att,<br><div class="gmail_extra"><br>--<br clear="all"><div>
<div><i>Julio Cesar Faracco<br></i></div><div><i>University of São Paulo - Brazil<br></i></div></div></div></div>