Upload probleem

<?php
	if ($_POST["upload"])
	{
		global $_FILES; 
		
		$filename = $_FILES['userfile']['name'];  
		$filetype = $_FILES['userfile']["type"];
		$filesize = size_hum_read($_FILES['userfile']['size']);
		
		if ($filename == "")
			echo "Je moet een bestand selecteren!";
		elseif (substr($filetype,0,5) == "audio")
		{
				if (is_uploaded_file($_FILES['userfile']['tmp_name']))
				{  
					move_uploaded_file($_FILES['userfile']['tmp_name'], "uploads/" . $filename);  
					echo "Het volgende bestand is succesvol toegevoegd:<br /><br /><div style=\"padding-left:20px;\"><b>". $filename . "</b> - ". $filesize ."</div><br /><a href=\"***">Terug</a>";
				}
				else echo "<div style=\"padding-left:20px;\">Er is een fout opgetreden!</div><br /><a href=\"***\">Terug</a>";
		}  
		else echo "<div style=\"padding-left:20px;\">Je kan enkel audio-files uploaden!</div><br /><a href=\"***\">Terug</a>";
	} 
	else
	{
	?>
		<table class="alg" align="center" style="border: 1px solid #cb7ad3;" width="300">
			<tr><td align="center">
		<form enctype="multipart/form-data" action="upload.php" method="post"> 
		<br />Selecteer een bestand:<br /><input name="userfile" type="file" style="font-family: Verdana;font-size: 11px;font-style: normal;background:#6d2774;border: 1px solid #cb7ad3; color:#FFFFFF" /><br /><br />
		<input name="upload" type="submit" value="upload bestand" style="font-family: Verdana;font-size: 11px;font-style: normal;background:#6d2774;border: 1px solid #cb7ad3; color:#FFFFFF" /> 
		</form> 
			</td></tr>
		</table>
<?php } ?>

<?php
	if ($_POST["upload"])
	{
		global $_FILES; 
 
		$filename = $_FILES['userfile']['name'];  
		$filetype = $_FILES['userfile']["type"];
		$filesize = size_hum_read($_FILES['userfile']['size']);
 
		if ($filename == "")
			echo "Je moet een bestand selecteren!";
		elseif (substr($filetype,0,5) == "audio")
		{
				if (is_uploaded_file($_FILES['userfile']['tmp_name']))
				{  
					move_uploaded_file($_FILES['userfile']['tmp_name'], "uploads/" . $filename);  
					echo "Het volgende bestand is succesvol toegevoegd:<br /><br /><div style=\"padding-left:20px;\"><b>". $filename . "</b> - ". $filesize ."</div><br /><a href=\"***">Terug</a>";
				}
				else echo "<div style=\"padding-left:20px;\">Er is een fout opgetreden!</div><br /><a href=\"***\">Terug</a>";
		}  
		else echo "<div style=\"padding-left:20px;\">Je kan enkel audio-files uploaden!</div><br /><a href=\"***\">Terug</a>";
	} 
	else
	{
	?>
		<table class="alg" align="center" style="border: 1px solid #cb7ad3;" width="300">
			<tr><td align="center">
		<form enctype="multipart/form-data" action="upload.php" method="post"> 
		<br />Selecteer een bestand:<br /><input name="userfile" type="file" style="font-family: Verdana;font-size: 11px;font-style: normal;background:#6d2774;border: 1px solid #cb7ad3; color:#FFFFFF" /><br /><br />
		<input name="upload" type="submit" value="upload bestand" style="font-family: Verdana;font-size: 11px;font-style: normal;background:#6d2774;border: 1px solid #cb7ad3; color:#FFFFFF" /> 
		</form> 
			</td></tr>
		</table>
<?php } ?>