Well, give up right now then, because it is absolutely impossible. "No right-click" scripts and other similar scripts will only end up annoying your users in which actually don't even want to steal your source code or images, but rather just want to casually use their browser features. Doing things like this will, indeed, drive away some users because they will be confused if once they come to your site they won't be able to use common features that they are usually able to use.
The source code of your site will always be accessible no matter what, it simply isn't worth trying to hide. Accept that it is impossible and simply don't waste your time trying to prevent people from accessing it, because you can't. The more accessible and usable your site is, the more people will be able to use and enjoy your site.
In the case of images, they can also easily be taken from a site no matter what kind of "no right-click" or other scripts you have applied. However, the most practical thing to do is to watermark your images. This will not completely prevent people from attempting to steal it, but it should cut down on the number of people that try to take your images because now there is something on the image that explictly defines it as your work.