na submit pagina niet goed.

					<?php 
					if (file_exists($filename)) 
						print "Bestand is wel aanwezig!"; 
					else 
						include 'createdb.php';
					?> 

<p>Vul op deze pagina de gevraagde gegevens in.</p>
<form action="createdb.php" method="post">
	<table>
		<tr class="form1"><td>
		<div class="pf">Database-naam</div></td><td><input type="text" id="Inp_Database" name="Inp_Database" tabindex="1">
		
		<tr class="form1"><td>
		<div class="pf">Gebruiker  </div></td><td><input type="text" id="Inp_User" name="Inp_User" tabindex="2">
		
		<tr class="form1"><td>
		<div class="pf">Wachtwoord </div></td><td><input type="password" id="Inp_Password" name="Inp_Password" tabindex="3">
		
		<tr class="form1"><td>
		<div class="pf">Host-adres </div></td><td><input type="text" id="Inp_Host" name="Inp_Host" tabindex="4">
		
		<tr><td>
		<input type="reset" value="Velden legen" id="Inp_reset" name="Inp_reset" alt="Alle velden legen" tabindex="5">
		</td><td>
		<input type="submit" value="Installeren" id="Inp_nstall" name="Inp_nstall" alt="Installatie starten" tabindex="6">
		<?php
			if($_POST['Inp_nstall'])
			{
			echo "<p>Er is op installeren geklikt!</P>";
			}
		?>
	</table>
</form>