Código (php,1,6) [Seleccionar]
$consulta1=mysql_query("SELECT DISTINCT marca from jos_Sector");
echo "Filtrar por sector:";
echo "<br>";
echo "<select name='sector' id='sector' onchange='submit()' style=\"width:235px\" ";
echo "><option value='0'>Seleccione sector</option>";
while($registro=mysql_fetch_row($consulta1))
{
echo "<option value='" .$registro[0]."'>$registro[0]</option>";
}
echo "</select>";
//echo "<input id=\"button\" type=\"button\" onclick=\"submit()\" value=\"OK\" />";
echo "<br>";
echo "<br>";