[Qexo-general] question about sequence number

[Jun Yu]

Hello everybody,
I am using Qexo 1.7.90 with my application. I am meeting a problem as
follows:

Here is my XML file courses.xml:
<semester>
  <lecture type="Kursvorlesung">Database</lecture>
  <lecture type="Seminar">Semantic Web</lecture>
  <lecture type="Praktikum">programming in SQL/Oracle8</lecture>
</semester>

Here is my XQuery:
let $i:=0
for $v in document("courses.xml"))/semester/lecture
let $i:=$i+1
return
<table>
<tr>
<td>{string($i)}.</td>
<td>{string($v/@type)}: </td>
<td>{$v}.</td>
</tr>
</table>

The result I can get is :
1. Kursvorlesung: Database
1. Seminar: Semantic Web
1. Praktikum: programming in SQL/Oracle8

Why I can not get the correct sequence number such as 1,2,3 with
the variable $i ?
Thanks in advance if anybody knows.

Best regards,
Jun Yu