I am running a series of web pages which are very graphic intensive but many of the graphics will already be on our desktop PC's as they are standard corporate diagrams & files. To minimise download time etc the pages have been coded to use these images rather than files on the server. Occasionally they are missing and I would like to check whether they exist and if they do read from hard disk and if not then use the images from the server. I had hoped is_file() would be the answer but I understand it will only work on the server. Any solutions for this simple little query please?