inner join problem

[dabastamasta]

i have a problem with a sql query, the databases all exist

$query = "SELECT DISTINCT users.userid, adressen.nachname, adressen.vorname, adressen.personenid AS adressen_personenid FROM adressen
INNER JOIN users ON adressen.personenid=users.personenid
INNER JOIN klassen
INNER JOIN module
INNER JOIN kurse
INNER JOIN dozentenliste
INNER JOIN ereigniss ON dozentenliste.ereignissid=ereigniss.ereignissid
ON klassen.klassenid=ereigniss.klassenid
INNER JOIN klassenzuteilung
ON klassen.klassenid=klassenzuteilung.klassenid
ON users.userid=klassenzuteilung.userid

WHERE klassenzuteilung.userid = '".$_SESSION[UserData][UserID]."' ";

echo getHTMLselectlist($query, "Form[DozentID]");

the following is the error i get

Query: SELECT DISTINCT users.userid, adressen.nachname, adressen.vorname, adressen.personenid AS adressen_personenid FROM ( adressen INNER JOIN users ON adressen.personenid=users.personenid INNER JOIN klassen INNER JOIN module INNER JOIN kurse INNER JOIN dozentenliste INNER JOIN ereigniss ON dozentenliste.ereignissid=ereigniss.ereignissid ON klassen.klassenid=ereigniss.klassenid INNER JOIN klassenzuteilung ON klassen.klassenid=klassenzuteilung.klassenid ON users.userid=klassenzuteilung.userid ) WHERE klassenzuteilung.userid = '7'

Error: Fehler beim Senden der Abfrage: You have an error in your SQL syntax near 'INNER JOIN module INNER JOIN kurse INNER JOIN dozentenliste IN' at line 6

thanks in advance

[tomhath]

Should the second ON be AND?

INNER JOIN ereigniss ON dozentenliste.ereignissid=ereigniss.ereignissid 
ON klassen.klassenid=ereigniss.klassenid 

[dabastamasta]

you know the funny thing is i cant really tell you if its right or wrong. im only debugging some php stuff someone has coded i didnt do it myself.
and im not a great php crack, ive tried replacing the second on with and but no worky