//Function disable_right_click()
            function disable_right_click(e)
            {
	            var browser = navigator.appName.substring ( 0, 9 );
                var event_number = 0;
                if (browser=="Microsoft")
                    event_number = event.button;
                else if (browser=="Netscape")
                    event_number = e.which;
                if ( event_number==2 || event_number==3)
                {
                    alert (" Sorry, this page cannot be copied !!!");
                    return (false);
                }
                return (true);
            }
            // Function Check_mousekey()
            function check_mousekey ()
            {	
	            var mouse_key = 93;
	            var keycode = event.keyCode;
                if(event.ctrlKey && event.keyCode == 65)
		            alert ( "Save option Is Disabled" );
                if(event.ctrlKey && event.keyCode == 67)
		            alert ( "Copy option Is Disabled" );
                if(keycode == mouse_key )
                    alert ( "Mouse Key Is Disabled" );
                if(event.altKey && event.keyCode == 70)
		        {
		            alert ( "File menu Is Disabled" ); 
		            window.focus()
		        }  
            }
            // function trap_page_mouse_key_events ()
            function trap_page_mouse_key_events ()
            {
                var browser = navigator.appName.substring ( 0, 9 );
                document.onmousedown = disable_right_click;
                if ( browser == "Microsoft" )
                {	
                    document.onkeydown = check_mousekey;
                }
                else if ( browser == "Netscape" )
                    document.captureEvents( Event.MOUSEDOWN );
            }