New to this board!

Has anyone put forward a javascript function to re-combine the div's for printing?

The first step would be to create a print specific CSS stylesheet for the slider. In the "print.css" you would define the element "coda-slider-wrapper" without "overflow:hidden" that would change the panels from horizontal to vertical making it more printer friendly. You'll want to go a step further and define the rest of the slider to print nicely, I've included an article that goes over those specifics. Remember, ".panel" defines the individual slides and will most likely need to be defined further for print, paper is precious and don't make your users print too many sheets with empty space.

Printing With Javascript: http://www.htmlgoodies.com/beyond/javascript/article.php/3471121
Print Specific CSS: http://www.alistapart.com/articles/goingtoprint/

The CSS call:

The HTML To call the print:

I hope this works for you, I haven't tested it. This is not a final product and will need more work on your part. Remember with all of this coding stuff it's trial and error - have fun!