baranitharan - I do not believe there is anyway to do what you want, File -> Save As and File -> Print are functions of the browser that you have no control over as they are not part of any web standard (i.e. HTML, Javascript, CSS etc). They are things that the browser designers put in because they thought they might be useful.
sashi - the things you suggest are worst than useless IMO because they are not deterant to someone who knows what they are doing, all the do is make a site a little more irritating to use.
If you are trying to prevent someone copying something you are publishing on the web then there is only 1 answer, don't publish it. Remember just by displaying it in there browser most people already have a copy of you item in there browser cache which is easy enough to access.