T_IF error in php registration form -

i trying php registration form working, having problems if/else statement. can't quite figure out.

error: parse error: syntax error, unexpected 'if' (t_if) in e:\xampp\htdocs\test\register.php on line 21 

php code :

$username = $_post['username']; $password = $_post['password']; $repassword = $_post['repassword']; $email = $_post['email'];  if ($username && $password && $repassword  && $email) {         if ($password == $repassword)         {             include ("connect.php");             $query = mysql_query("select * users username = '$username'");             $numrows = mysql_num_rows($query)             if($numrows == 0)         <<- line 21             {                 echo "username not taken";             }             else             {                 echo "that username taken!";             }         }         else             echo "password did not match";  } else     echo "you did not fill in every field!";  else {//show registration form stackoverflow cant display properly.} 

maby 1 of guys sees problem.

thanxs in advance,

jim

you missing semicolon ; right after query

$numrows = mysql_num_rows($query); //here missing wich causing error 

edit kavi siegel suggested seems missing closing bracket in last else (the 1 have commented)

else  {//show registration form stackoverflow cant display properly.   } //this commented