Automatically limit inline images to 640 wide

With more and more people jumping on the Digital Camera bandwagon... and 6 megapixel cameras cranking out 2100 pixel plus pictures, is there an easy way to automatically display images larger than 640pixels as a 640 thumbnail that links to the image?

I saw the Thumbnail Mod, but it didnt work for me, got some $Returner errors ... but even if it did work.. that would mean educating people on when to use the THUMB code. I'd prefer if it just did it for them

Thanks for your consideration!

Could be slightly dangerous; if you edited the image code, any image SMALLER than 640 would be enlarged... Immagine that 20px smily displaying as 640x480 lol...

Yeah, I had considered that already

So Im hoping Ian has something up his sleeve hehe

ugh, it'd require javascript since IE hates max-width

something like

Code

function fix_images( max_width ) {
	var images = document.getElementsByTagName( "img" );
	var i = 0;
	for( i = 0; i < images.length; i++ ) {
		var img = images[i];
		if(  img.width > max_width && img.alt == "-" ) {
			var new_height = img.height * ( max_width / img.width );
			img.width = max_width;
		}
	}
}