<option value="N99" <?php if ( $_SESSION['SONDE_NIVEAU'] == "N99" ) echo('selected'); ?> > tous	</option>
<option value="N9"  <?php if ( $_SESSION['SONDE_NIVEAU'] ==  "N9" ) echo('selected'); ?> > -1	</option>
<option value="N0"  <?php if ( $_SESSION['SONDE_NIVEAU'] ==  "N0" ) echo('selected'); ?> >  0	</option>
<option value="N1"  <?php if ( $_SESSION['SONDE_NIVEAU'] ==  "N1" ) echo('selected'); ?> >  1	</option>
<option value="N2"  <?php if ( $_SESSION['SONDE_NIVEAU'] ==  "N2" ) echo('selected'); ?> >  2	</option>
<option value="N3"  <?php if ( $_SESSION['SONDE_NIVEAU'] ==  "N3" ) echo('selected'); ?> >  3	</option>
<option value="N4"  <?php if ( $_SESSION['SONDE_NIVEAU'] ==  "N4" ) echo('selected'); ?> >  4	</option>
<option value="N5"  <?php if ( $_SESSION['SONDE_NIVEAU'] ==  "N5" ) echo('selected'); ?> >  5	</option>
<option value="N6"  <?php if ( $_SESSION['SONDE_NIVEAU'] ==  "N6" ) echo('selected'); ?> >  6	</option>
<option value="N7"  <?php if ( $_SESSION['SONDE_NIVEAU'] ==  "N7" ) echo('selected'); ?> >  7	</option>
