captionPosition is a Pro configuration option which is not supported by Juicebox-Lite (the free version).
In Juicebox-Lite, the default value for captionPosition (OVERLAY_IMAGE) is always used.
Juicebox-Lite supports only the Lite Options listed in the Config Options page.

I hope this helps to clarify things.

If you like, Juicebox-Pro can be purchased from the download page here.
As well as having access to all Pro configuration options, Pro galleries have no image limit (Lite galleries are limited to 50 images) and no branding (Lite galleries feature a Juicebox logo in the lower right corner).

All responses to a post are displayed beneath each other (in chronological order).

If you have Juicebox-Pro, you could use the Back Button to include a link to any web page you like (via the backButtonUrl configuration option).
You can see the Back Button in action in the top-left corner of this demo gallery.
For reference, a list of all Back Button configuration options can be found here.

Please note that the Back Button is a Pro feature which is not supported by Juicebox-Lite (the free version).
However, you can include links in a Juicebox-Lite gallery by using HTML formatting within either the Gallery Title or image titles/captions as noted in the following FAQs.
How do I add HTML formatting to image captions and titles?
How do I add HTML formatting to the Gallery Title or Back Button?

For example, a link in an image caption might look something like this:

<caption><![CDATA[<a href="http://www.example.com/index.html">Click here.</a>]]></caption>

In JuiceboxBuilder-Lite, you would just need to enter:

<a href="http://www.example.com/index.html">Click here.</a>

... JuiceboxBuilder-Lite will add the <caption> and CDATA tags when the caption is written to the gallery's 'config.xml' file.

Alternatively, instead of having a list of galleries on a separate page, you might like to have the list always visible and have your links display the chosen gallery (alongside the list).
Take a look at 'Switching between Multiple Galleries using JavaScript' in the Embedding Multiple Galleries support section.
You'll see there are links (which are always visible) to 2 different galleries and the gallery being displayed on the page can be selected (and changed) by clicking the links.
You can view the source of the web page in your browser and copy/modify the code to suit your own needs.
(You might also like to take a look at 'Using a Resizable Gallery with a Header'. The examples here use separate pages for each gallery but the navigation menu is duplicated on each page alongside the galleries.)
The multiple gallery examples all work equally well for both Juicebox-Lite and Juicebox-Pro.

I hope this helps and points you in the right direction.

If you want to have a collaborative gallery, then the easiest way to do it might be to create a Flickr account to store the gallery's images, create a Juicebox gallery to display the images form this Flickr account and give all the potential image providers the login details for the Flickr account (so that they can upload images and add titles and captions via the Flickr interface). Obviously, this does not allow casual visitors to your web site to upload images to your gallery but allowing this might pose a security risk (see my notes below).

If you did not want to use Flickr, then you could use perhaps purchase Showkase and use it in its Gallery Manager theme to manage a gallery online via a web browser interface. Again, you'd need to give people access to the Showkase admin section. People could then add images (and titles and captions) to existing galleries via the Showkase interface (which you can check out by logging into the Live Demo Admin).

Alternatively, you would have to somehow provide a web interface so that:
(1) Users could upload images.
(2) User could add titles and captions.
(3) Have the gallery's XML file updated accordingly.

Unfortunately, this is not available in Juicebox-Pro and, although technically possible to achieve manually (perhaps using a third-party library for image uploading, for example), it would be a complex and time-consuming task to provide such functionality and knowledge of a server-side scripting language (such as PHP) would likely be required.
Also, you would probably need some kind of security measure. Flickr and Showkase require login details but if you just provided some kind of upload module on a web page, it might be open to abuse and visitors to your web site would be able to upload whatever images they like to your server and gallery.

You could perhaps circumvent #3 above by having Juicebox display images from a designated folder on your server so that the gallery's XML data is always generated dynamically when the gallery is displayed (and a static XML file does not have to be updated each time images are added). Please see this forum post for details.

You could also have image titles and captions embedded in the images (as EXIF or IPTC data) so that they do not need to typed in separately.
The PHP script that lists the images in the designated folder could also extract the image titles and captions. (Again, in-depth knowledge of PHP would be required.)
If you wanted to allow anyone to upload images, then it is perhaps unlikely that they would already have titles and captions embedded in their images and you might still want to provide a way for them to be able to enter them manually.

Either way, it would be a huge task to undertake.

Unfortunately, I'm not aware of any ready-made package that might make this any easier to implement. I'd just need to try a web search and see what comes up.

I don't know if my Flickr suggestion above is perhaps an option (I'm not sure if you want to allow only a certain group of people to be able to add images to a gallery or if you want to extend this ability to anyone who visits your web site) but it's certainly the easiest to implement.

Unfortunately, this is not possible.
Juicebox uses just one set of configuration options for both normal and expanded modes and there is only one imageScaleMode option which is used for both. Also, it is not possible to change the value of a configuration option after a gallery has been loaded.

However, you might like to suggest this in the Feature Requests forum thread.
I do not know the likelihood of any suggestions being implemented in future versions but posting there keeps all the ideas together and ensures that they are not overlooked by the developers.
Thank you.

@studio tissot mayenfisch

The PHP code provided by the original poster is just racerx2oo3's way of dynamically generating a gallery's 'config.xml' file.
It is not actually part of the suggestion (to have the purchaseURL open in a modal popup). In fact, PHP is not required at all.

To see my code in action, just create a sample gallery with JuiceboxBuilder-Pro, add some purchaseURLs to the gallery's 'config.xml' file (you'll need to do this manually in a plain text editor... please see here for details) and replace the gallery's embedding code in the 'index.html' file with the code I posted above.

As far as I am aware, Juicebox takes the purchaseURL and uses the JavaScript window.open function to open the URL in a new ('_blank') tab.
Unfortunately, this functionality is hard-coded within the 'juicebox.js' file which is packed and obfuscated and cannot be modified.

The only way I can think of to open a purchaseURL as a modal popup would be to override Juicebox's own handling of the Shopping Cart icon. (You are welcome to try this but please note that such modifications are not officially supported.)
You could then run some custom JavaScript code (to open a modal popup) when the Shopping Cart icon is clicked.
Unfortunately, it is not currently possible to fetch an image's purchaseURL from the gallery's configuration file using the Juicebox-Pro API getImageInfo() method (I have notified the developers of this) but you could parse the file yourself and extract the required purchaseURL manually.

Here's some sample code that should hopefully point you in the right direction and serve as a starting point.

<!--START JUICEBOX EMBED-->
<script src="jbcore/juicebox.js"></script>
<script type="text/javascript">

    var purchaseURL;

    var strWindowName = 'Shopping Cart';
    var strWindowFeatures = 'menubar=yes,location=yes,resizable=yes,scrollbars=yes,status=yes,width=600,height=400';

    var jb = new juicebox({
        containerId: "juicebox-container",
        galleryWidth: "100%",
        galleryHeight: "100%",
        backgroundColor: "#222222"
    });

    jb.onInitComplete = function() {
        $('.jb-bb-btn-fotomoto').off('click');
        $('.jb-bb-btn-fotomoto').click(function() {
            var windowObjectReference = window.open('about:blank', strWindowName, strWindowFeatures);
            $.get('config.xml', function(data) {
                var index = jb.getImageIndex();
                purchaseURL = $(data).find('image').eq(index - 1).attr('purchaseURL');
            }).done(function() {
                windowObjectReference.location.replace(purchaseURL);
            }).fail(function() {
                windowObjectReference.close();
            });
        });
    };

</script>
<div id="juicebox-container"></div>
<!--END JUICEBOX EMBED-->

I replied to your query above via email on 17 March 2017.
I hope you received it (but being that you are posting your query here, I'm guessing that you might not have).

Below is a copy of my message. I hope it helps.

---------

I have viewed your web page in Chrome, Edge, Firefox, IE11 and Opera on a PC and see similar results as yourself. Both galleries display fine in all browsers except Firefox (where only the second gallery is displayed).

I notice that the first gallery displays fine in Firefox when viewed on its own web page here: http://www.sakura-karate.de/juicebox/07 … index.html
... so the problem seems to be somewhere within your embedding page.

It looks like the problem is caused by some custom CSS in your 'sakura.css' file.
The first Juicebox container on your page (relating to the first gallery) has a CSS class of 'kurznews':

<div class="kurznews" id="juicebox-container02"> 

... and your 'sakura.css' file has the following code on line 1329:

.kurznews {
    display: table; 
    width: 100%; 
    border-bottom: 1px solid #888;
    margin-bottom: 30px;
    padding-bottom: 40px;
    float: none;
    clear: both;
}

All this custom CSS (including 'display: table;' which I believe to be the cause of the problem) is being applied to your first gallery's Juicebox container.
The second Juicebox container on your page does not have this CSS class (and displays fine).

Remove the 'kurznews' class from your first Juicebox container (or at the very least make sure that 'display: table;' is not applied to the Juicebox container) and the gallery should hopefully display fine.

---------

Try changing:

<div class="kurznews" id="juicebox-container02"> 

... to:

<div id="juicebox-container02"> 

I'm glad you've got it working.
Thank you for letting me know.

I would, too. I do not know the cause of the problem but, knowing that it is somehow connected to the user profile, you could try Microsoft's instructions to Fix a corrupted user profile in Windows 7. This should hopefully allow you to continue to have just one user account (and have JuiceboxBuilder work under it). It might be worth a shot.

Please feel free to post suggestions for future versions in the Feature Requests forum thread.
This keeps all the ideas together and ensures that they are not overlooked by the developers.
I do not know the likelihood of any suggestions being implemented (video support may be unlikely as Juicebox was originally designed as an image viewer) but this is certainly the best place for all ideas.
Thank you.

You're welcome!
I've glad you've been able to resolve your problem.
Thank you for posting back to let me know.