How not to use images
Within a web page it's possible to resize an image using the HEIGHT=
and WIDTH= attributes. For example, a 2 megabyte image which is 3000 x
2000 pixels in size (which would take a long time to download) could be
made much smaller by entering something like <img
src="/learning_centres/mybigimage.jpg" height="150" width="100">.
This would appear on the screen as 150 x 100 pixels but would still be
as slow to download - because the whole 2 megabyte file still needs to
be downloaded by the user. It would be a much better idea to have a thumbnail
with a link to the full size image, perhaps with some text indicating
that the link is to a large image and hence will be a slow download. Something
like <a href="mybigimage.jpg"><img
src="/learning_centres/mybigimage_thumb.jpg" height="150" width="100"
border="0"></a> would work fine in this instance.
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