Yes. I have seen many sites that use full sized images for thumbnails. In
Visual Studio there are server-side controls that do all of the image
resizing on the server side and only send down a naturally sized thumbnail
down the line. I would have thought that you could get away with having
static thumbnails, since most of your cam pics are of scenes of landmarks,
that would only change markedly from day to night views. You also have the
alt attribute for the thumbnails that gives a tooltip description of the cam
location. I know the adage that a picture tells the story of a thousand
words, but I would suggest that in the case of Cam images, a few words that
describe the location and maybe the local time of the cam may be more
informative than a tiny real-time preview.
IE8 is now RTW (release to web) and mainstream development is now targeting
the next release of IE and (I suppose) the Win7 platform. There probably
won't be any upgrades to IE8 as it stands now.
"bdaniel" <email@example.com> wrote in message
> The webcams are updated at various times and are not under my control. I
> thought about using static thumbnails for the webcams but I really don't
> to do that. I just wanted to let someone at Microsoft know that something
> happened in IE8 that has greatly degraded performance from IE7 in this
> particular situation.
> I am sure there will be other webmasters that will have the same problem.
> is a pretty drastic degradation.
> Thanks for your continued help. My users will be upgrading to IE8 and I
> to try to find some solution.
> "rob^_^" wrote:
>> Another look at your markup....
>> You are using the full sized images for your thumbnails and just using
>> img tag height and width attributes to resize them all to 49x40px. On
>> mouseover you again use the full sized (natural sized) image as the
>> I think all of the time to render your page is taken up in rendering the
>> thumbnail images from the full sized natural height/width images.
>> I would suggest that you use separate images for your thumbnails. Use an
>> image editing program to resize/crop your previews to the thumbnail size.
>> You can send all your thumbnails and preview images down the line in one
>> by using an image array (see Macromedias Preload function), so that you
>> don't have to download the preview image on the thumbnail mouseover.
>> This should speed up your page in all browsers.
>> "rob^_^" <firstname.lastname@example.org> wrote in message
>> > Hi Daniel,
>> > I have no problems viewing your thumbnails and previews on Vista x86
>> > SP1,
>> > except when I move the mouse over the Preview and then back to the
>> > thumbnail list. You could possibly improve this by adding space between
>> > the thumbnails so that mouseout is fired before the next thumbnail
>> > mouseover event.
>> > First try your site in IE8 no-Addons mode...
>> > Start>Programs>Accessories>System Tools>Internet Explorer (no-Addons)..
>> > Addons like the imageshack toolbar may be injecting additional markup
>> > or
>> > script in your page (to aid uploading of images to their servers).
>> > Second your page contains some markup errors -
>> > http://validator.w3.org/check?verbos...stuff.co m%2f
>> > These errors may cause some IE8 users to trip the IE7 emulation mode in
>> > IE8 (Advanced option - "Automatically recover from rendering errors
>> > with
>> > compatibility view"). But it is always a good idea to validate your
>> > markup, and to rule out any issues with standards compliance.
>> > Regards.
>> > "bdaniel" <email@example.com> wrote in message
>> > news:7976A579-227A-447D-A0BA-9CEF3928A59A@microsoft.com...
>> >> On my webpage I display 39 webcams as small thumbnails. I use the
>> >> <img>
>> >> width
>> >> and size to display a normal size webcam image as a small thumbnail.
>> >> As
>> >> the
>> >> mouse is moved over the images I display them in a larger size on my
>> >> page.
>> >> After all the webcams images have been downloaded (usually less than
>> >> 10
>> >> seconds) the mouseover/mouseout displays the separate images very
>> >> quickly.
>> >> Except for IE8. There is something different about how it handles the
>> >> <img>
>> >> resize. I found a posting on another site that says IE8 does not
>> >> retain
>> >> the
>> >> resized thumbnail in memory. That it has to resize the images on every
>> >> mouse
>> >> move.
>> >> I tried Compatibility View and I get the same result. It worked fine
>> >> in
>> >> IE7
>> >> and works fine in Firefox and Safari.
>> >> The web url is http://www.bobbystuff.com
>> >> Thank you for any help or insight on how to handle this problem.