//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(event.ctrlKey && event.keyCode == 80)
		    alert ( "Print 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 );
    }