Hier noch mal der Code:
<form action="knowledge.asp" method="post">
<!--<form action="knowledge.asp" method="post" enctype="multipart/form-data">-->
<b>Datei-Upload</b><br>
<br>
Hier haben Sie die Möglichkeit technische Dokumentationen hochzuladen und zu archivieren!
<br><br>
<input name="Datei1" type="file" size="50" maxlength="10485760" onClick="sichtbar(2);">
<input name="Datei2" type="file" size="50" maxlength="10485760" style="visibility:hidden;" onClick="sichtbar(3);">
<input name="Datei3" type="file" size="50" maxlength="10485760" style="visibility:hidden;" onClick="sichtbar(4);">
<input name="Datei4" type="file" size="50" maxlength="10485760" style="visibility:hidden;" onClick="sichtbar(5);">
<input name="Datei5" type="file" size="50" maxlength="10485760" style="visibility:hidden;" onClick="sichtbar(6);">
<input name="Datei6" type="file" size="50" maxlength="10485760" style="visibility:hidden;" onClick="sichtbar(7);">
<input name="Datei7" type="file" size="50" maxlength="10485760" style="visibility:hidden;" onClick="sichtbar(8);">
<input name="Datei8" type="file" size="50" maxlength="10485760" style="visibility:hidden;" onClick="sichtbar(9);">
<input name="Datei9" type="file" size="50" maxlength="10485760" style="visibility:hidden;" onClick="sichtbar(10);">
<input name="Datei10" type="file" size="50" maxlength="10485760" style="visibility:hidden;">
<br><br>
<input type="submit" name="hochladen" value="Upload">
</form>