[quote=@LegendBegins]
Though, I would personally be careful when saying that something "cannot be done" in a language. I've learned throughout the years of programming that there is often, if not always, a workaround to any problem.
[/quote]

Seconded.

EDIT: Did some googling, and it seems its actually really easy. In theory, anyway.

[url]http://stackoverflow.com/questions/170624/javascript-image-resize[/url]

EDIT2: actually, that'd be done every time the page is loaded, for every image. Not efficient. But the point remains that it [i]is[/i] possible.

EDIT3: Too many edits. Anyways, perhaps something like this? No idea how it works, but it looks interesting. [url]http://www.plupload.com/[/url]