Here is a code to make it so no one can right click or highlight text on your website. (Although people can still disable javascript.)
Code:
<SCRIPT LANGUAGE="JavaScript" type="text/javascript" >
<!--
document.oncontextmenu = function() {return false}
if (document.layers) {
window.captureEvents(Event.MOUSEDOWN);
window.onmousedown = function(e) {
if (e.target==document) return false;
}
}
else {
document.onmousedown = function() {return false}
}
//-->
</SCRIPT>
EDIT: I forgot to mention that this disables you from clicking/ typing in form boxes for some reason.