First find out what happens if you move your mouse over each of the two pictures, in portrait format, below.
Then take your time to choose between (i) a JavaScript slide show of our three weeks trip through the eastern Pyrenees containing 30 high quality pictures, all in landscape format, with an interval of 4 seconds sharp between two successive slides, and (ii) a slower internal frame version, without JavaScript, where you have to click "next", each time you want to view the next picture.
Click the image, from the village of Beget, for case (i)