If you don't like using javascript, you can always use a span tag to position a transparent gif over the top of the image like the example code below. Don't forget, you will need to create a transparent.gif to implement this method.
Tratto da [Solo gli utenti registrati possono vedere questo collegamento. ]
Oppure potresti provare
Spoiler:
Disable Copy and Paste for greater website security.One of the most popular questions I recieve here at Hypergurl is "How do you stop visitors from stealing your webpage information?" Below is a little trick that will stop your visitors from copying and pasting your webpage information. Anyone with experience may know a way around this trick. However it will make it hard enough to discourage them and get them moving on to easier targets. Add the following html code to your BODY tag:
Here is how your BODY tag may look once implimented: <body bgcolor="#FFFFFF" ondragstart="return false" onselectstart="return false">
ondragstart="return false" onselectstart="return false" Tratto da: [Solo gli utenti registrati possono vedere questo collegamento. ]
Oppure direttamente dal dorum di vbulletin [Solo gli utenti registrati possono vedere questo collegamento. ]