On all my web sites, pictures are for the screen and for print.
MSIE has
document.body.onbeforeprint
This function is called when MSIE prepares the print preview.
I use usual this function to replace the low res pictures for the screen by the high res pictures for print.
Since the resolution of screens goes higher and higher,
I am just sinking to offer high res surfing on my pages.
So by activating high res surfing,
the function would be used also for normal surfing,
so somebody with a huge screen could see all the pages
with the pictures in high resolution
Any input about the idea?