This post originated from an RSS feed registered with Python Buzz by Phillip Pearson. Original Post: Reloading images without flicker Feed Title: Second p0st Feed URL: http://www.myelin.co.nz/post/rss.xml Feed Description: Tech notes and web hackery from the guy that brought you bzero, Python Community Server, the Blogging Ecosystem and the Internet Topic Exchange Latest Python Buzz Posts Latest Python Buzz Posts by Phillip Pearson Latest Posts From Second p0st

Finally found how to refresh an image in a document without making the old image disappear while the new one loads. I know I'm going to forget this if I don't write it down, so...

foo = new Image();
foo.src = url_of_new_image;
foo.onerror = function_to_call_if_download_fails;
foo.onload = function_to_call_when_download_finishes;

Then stash foo away somewhere, and when the foo.onload function gets called, copy foo.src over to the image you want to refresh.

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