"src="sale.gif""

hi , 

i was confused why the browser loads a default image when the original image is not found or  when the image takes more time to load , user has to wait till the original image succeeds or fails . it looks not interactive , browser behaves the same in HTML 5 world also.

my suggestion is if image tag has a default field to load the default image until the original image is loaded or until the original is failed and even if the original image is failed let the default image defined by the user is shown instead of browser to show to default gif .   

<img default="default.jpg" src="acb.jpg alt="default">

Thanks
Mohan