penso possa servire... nel php alla fine i testoround vengono richiamati in un form così:

codice:
<form action="<?php echo $_SERVER['PHP_SELF']?>" method="post">  <table style="width: 100%">
    <tr>
      <td width="89%"><label for="tau"></label>
        <select name="tau" id="tau" onchange="this.form.submit()">
		  <option value="4" <?php if($tau==4) echo "selected";?>><?php echo $testoround[$round][4]; ?></option>
          <option value="5" <?php if($tau==5) echo "selected";?>><?php echo $testoround[$round][5]; ?></option>
          <option value="6" <?php if($tau==6) echo "selected";?>><?php echo $testoround[$round][6]; ?></option>
          <option value="7" <?php if($tau==7) echo "selected";?>><?php echo $testoround[$round][7]; ?></option>
          <option value="8" <?php if($tau==8) echo "selected";?>><?php echo $testoround[$round][8]; ?></option>
          <option value="9" <?php if($tau==9) echo "selected";?>><?php echo $testoround[$round][9]; ?></option>
          <option value="10" <?php if($tau==10) echo "selected";?>><?php echo $testoround[$round][10]; ?></option>
          <option value="11" <?php if($tau==11) echo "selected";?>><?php echo $testoround[$round][11]; ?></option>
          <option value="12" <?php if($tau==12) echo "selected";?>><?php echo $testoround[$round][12]; ?></option>
          <option value="13" <?php if($tau==13) echo "selected";?>><?php echo $testoround[$round][13]; ?></option>
          <option value="14" <?php if($tau==14) echo "selected";?>><?php echo $testoround[$round][14]; ?></option>
          <option value="15" <?php if($tau==15) echo "selected";?>><?php echo $testoround[$round][15]; ?></option>
          <option value="16" <?php if($tau==16) echo "selected";?>><?php echo $testoround[$round][16]; ?></option>
          <option value="17" <?php if($tau==17) echo "selected";?>><?php echo $testoround[$round][17]; ?></option>
          <option value="18" <?php if($tau==18) echo "selected";?>><?php echo $testoround[$round][18]; ?></option>
          <option value="19" <?php if($tau==19) echo "selected";?>><?php echo $testoround[$round][19]; ?></option>
          <option value="20" <?php if($tau==20) echo "selected";?>><?php echo $testoround[$round][20]; ?></option>
          <option value="21" <?php if($tau==21) echo "selected";?>><?php echo $testoround[$round][21]; ?></option>
          <option value="22" <?php if($tau==22) echo "selected";?>><?php echo $testoround[$round][22]; ?></option>
          <option value="23" <?php if($tau==23) echo "selected";?>><?php echo $testoround[$round][23]; ?></option>
          <option value="24" <?php if($tau==24) echo "selected";?>><?php echo $testoround[$round][24]; ?></option>
          <option value="25" <?php if($tau==25) echo "selected";?>><?php echo $testoround[$round][25]; ?></option>
        </select></td>
    </tr>
  </table>
</form>