agradeceria mucho su ayuda
Código PHP:
<script language="JavaScript">
function A(e,t)
{
var k=null;
(e.keyCode) ? k=e.keyCode : k=e.which;
if(k==13) (!t) ? B() : t.focus();
}
function B()
{
document.forms[0].submit();
return true;
}
</script>
Código PHP:
echo "<form method='post' action='user.php?action=admin&control=contrato2' >";
echo "<table border='0'>";
echo "<tr>";
echo "<td>Importe</div></td>";
echo "<td>Descuento</div></td>";
echo "<td>Qna Descuento</div></td>";
echo "<td>Importe Total</div></td>";
echo "</tr>";
echo "<td><input name='importe2' size='7' type='text' value='$importeone' readonly class='tb4'></td>";
echo "<td><input name='importe' size='7' type='hidden' value='$importeone' readonly class='tb4'></td>";
echo "<td><input name='pctje' size='7' type='text' value='$impdesc' readonly class='tb4'></td>";
echo "<td>";
$chars=0;
$sSQL="SELECT quincena FROM quincenas where estatus='2'";
$result=mysql_query($sSQL);
echo "<select name='qna_descto' id='y' onKeyDown='A(event,this.form.x);'>";
echo "<option selected='selected'>";
while ($row=mysql_fetch_array($result))
{echo '<option value='.$row[0].'>' .mostrar_pnt(array($chars,$row[0])).'</option>';}
mysql_free_result($result);
echo "</td>";
echo "<td><input name='importe_cto' size='8' id='x' onKeyDown='A(event,this.form.z);'/></td>";
echo "<td><input name='final' size='8' type='hidden' value='final' /></td>";
echo "<td><INPUT TYPE='submit' NAME='accion' VALUE='Terminar' class='css3button'></td>";
echo "<td><input name='folio' size='8' type='hidden' value='$folio' class='tb4'/>";
echo "<input name='rfc' size='8' type='hidden' value='$rfc' class='tb4'/>";
echo "<input name='seccion' type='hidden' size='4' value='$id_seccion' class='tb4'/>";
echo "<input name='fincheck' type='hidden' size= '3' readonly value='1' class='tb4'>";
echo "<input name='bandera' type='hidden' size='3' readonly value='ok' class='tb4'>";
echo "</td>";
echo "</tr>";
echo "</table>";
echo "</form>";