In writing code for one of my sites I have found that it would be useful if I could create a button that would (presumably using javascript) save a copy of the image on the screen when the user presses the button. Is there any way to do this? Thanks!
Javascript has no access to the client's file system. If what you're wanting to do with a button were possible, it could be done without a button, and malicious code could fill someone's hard drive with kiddie porn.
Javascript is the main part of ajax. It can do this with the help of php or perl. However, this is a premium type thing man, not a quick solution to post in a forum....unless someone has a lot of freetime.