si, disculpa.. aqui esta:
<?php
session_start();
if (!isset($_SESSION['userid'])){
echo '<script language="Javascript">';
echo "location.href='index.php';";
echo '</script>';
}
if(!isset($_REQUEST['action'])){
$action=5;
}
else{
$action=$_REQUEST['action'];
}
?>
<html>
<head>
<link rel="stylesheet" type="text/css" href="main.css">
<title>Administración</title>
</head>
<body>
<br>
<div class="centrado">
<?php
require_once('header-menu.php');
require_once('bd.php');
?>
</div>
<div id="wraper">
<div id="sidebar" class="admin-menu">
<ul class="barra">
<li>
<form metod=post action="admin.php">
<input type="hidden" name="action" value="1"/>
<a href="javascript
:document.forms[0].submit()">Agregar Profesores</a></li>
</form>
<li>
<form metod=post action="admin.php">
<input type="hidden" name="action" value="2"/>
<a href="javascript
:document.forms[1].submit()">Agregar Capacitacion</a></li>
</form>
<li>
<form metod=post action="admin.php">
<input type="hidden" name="action" value="3"/>
<a href="javascript
:document.forms[2].submit()">Agregar Sede</a></li>
</form>
<li>
<form metod=post action="admin.php">
<input type="hidden" name="action" value="4"/>
<a href="javascript
:document.forms[3].submit()">Usuarios</a></li>
</form>
</ul>
</div>
<div id="content">
<?php
switch($action){
case 0:
switch($_REQUEST['event']){
case 1:
//codigo
break;
case 2:
//codigo
break;
case 3:
//codigo
break;
}
break;
case 1:
require_once('carga.html');
break;
case 2:
require_once('capacitacion.php');
break;
case 3:
require_once('sede.html');
break;
case 4:
require_once('usuarios.php');
break;
default:
echo "modulo administrativo";
}
?>
</div>
</div>
</body>
</html>