Yes you can, if you load in the contents dynamically with ajax, u cant save it perfectly, at least not the innerHTML property fetched via ajax. Then u can prevent your images from being downloaded at least not as easily as saving pages by encapsulating them in style sheets, i cant fully explain this, but if u need it u can tell me, i will post a private example to u.
Dinold, you should ask yourself: why do you even want to do this? Are you ashamed of your code? Or are you merely feeling malicious and wanting to make it harder for Web-design newbies to learn from the Web? The Web is by its very nature open. Accept it, or design an alternative (though I doubt many people would switch ).
Thread closed; there are a large number of other threads already discussing this.