Здравствуйте, razrobotki!
В приложении пример решения вашего вопроса.
Советую почитать про
switchПриложение:
<form method="POST" action="?tovid=<? echo $tovid; ?>">
<select name="typepay">
<option value="ns">1
<option value="sys">2
<option value="vs">3
<input type="submit" value="Go">
</select>
</form>
<?php
$typepay = $_POST['typepay'];
if (isset($typepay))
{
switch($typepay)
{
case "ns":
include "1_1.php";
break;
case "sys":
include "2_1.php";
break;
case "vs":
include "3_1.php";
break;
}
}
?>