I'm building a site where I want to show a lot of 360 panoramas and VR tours, some of them using Java/XML, but most of them using Flash.
The Flash panos are also using an XML file, and the pano is inserted into a <div id="content> tag using swfobject.js
I want to select the pano/tour from a list, either thumbs or text, and show them inside the page.
It works fine displaying them on the page using iframe in a HTMLplaceholder.
I did some test by adding a popupLayer with such an iframe on each one.
Unfortunately all the hidden popup layers seems to load while the main page is loading, which makes this impossible to use when there are lots of panos/popups. The Java panos were behaving particularly bad on popups

Here's a very unfinished test page: http://bknilssen.no/X/
On the Panorama page are those tests:
On the wide menu on the lower left side are a few functional buttons:
Posebyen opens a Java tour in a new window.
Festninga opens a Flash pano in a popup iframe using php (showing the pano parameter for testing purposes).
Tall Ships Racing also opens in a popup/iFrame.

Any ideas how I may reuse the popup (or a fixed frame) to show lots of panos (hundreds) on the same page, without having to load them all while opening the page?
Or are there snippets/widgets available for such purposes?

TIA