I want to be able to check if an image is available on the net via a URL. I want to be able to check if the file exists before downloading the file. At the moment I can't seem to find a way to check this. I've tried the download object but it does not report a problem with an invalid path to a JPG and creates a version on the hard drive. This version of the JPG is obviously corrupt. So to recap is there a way to:
a) check a URL (linked to JPG on the net) is valid/exisits?
b) check if the file that has been downloaded is corrupt