Attempting to use several url parameters in one url

Question

Problem: I can either pass along the picture ID parameter or the album ID parameter to the next page, but never both
I have a URL parameter for the picture ID, and I have another for the album ID, which determines also the directory where the pictures are stored on the server.
Only the album ID parameter:
photoalbum.php?mod=album&id_alb=<?php echo $row_rsImages['id_alb']; ?>
which generates this URL: photoalbum.php?mod=album&id_alb=6
Result: loads picture A just fine
Only the picture ID parameter:
photoalbum.php?mod=detail&id_img=<?php echo $row_rsImages['id_img']; ?>
which generates this URL: photoalbum.php?mod=detail&id_img=8
Result: loads picture B just fine
Now I want to pass both parameters:
photoalbum.php?mod=detail&id_img=<?php echo $row_rsImages['id_img']; ?>mod=album&id_alb=<?php echo $row_rsImages['id_alb']; ?>
which generates this URL: photoalbum.php?mod=detail&id_img=8mod=album&id_alb=
Shows only one picture
But when I type a number at the end of the url so that it reads;
photoalbum.php?mod=detail&id_img=8mod=album&id_alb=6
It shows both pictures
MySQL Query:
rsImages
SELECT id_img, Vlg_img, idalb_img, filename_img, filenameA_img, filenameB_img, description_img, date_img
FROM image_img
WHERE idalb_img = colname
Name: colname
Type: Text
Standard Value:  -1
Runtime Value: $_GET['id_alb']
MySQL Query:
rsAlbBgr
SELECT id_alb, title_alb, description_alb, backgr_img
FROM album_alb
WHERE album_alb.id_alb= bgrname
Name: bgrname
Type: Text
Standard Value:  -1
Runtime Value: $_GET['id_alb']
It's puzzling me for days now, can someone please help me?
MySQL - 5.0.27
MySQL client version: 4.1.20
PHP Version 5.2.3

Answer 1

> which generates this URL: photoalbum.php?mod=detail&id_img=8mod=album&id_alb=
You need an ampersand between each set of information in the url - in this case between img=8 and mod=album. the line above needs to be
photoalbum.php?mod=detail&id_img=8&mod=album&id_alb=