if (document。layers) {

document。captureEvents(Event。MOUSEDOWN);

document。onmousedown=click;

document。oncontextmenu = new Function(〃return false;〃)

function click(e) {

if (document。all) {

if (event。button==2||event。button==3) {

oncontextmenu='return false';

if (document。layers) {

if (e。which == 3) {

oncontextmenu='return false';

if (document。layers) {

document。captureEvents(Event。MOUSEDOWN);

document。onmousedown=click;

document。oncontextmenu = new Function(〃return false;〃)

function click(e) {

if (document。all) {

if (event。button==2||event。button==3) {

oncontextmenu='return false';

if (document。layers) {

if (e。which == 3) {

oncontextmenu='return false';

if (document。layers) {

document。captureEvents(Event。MOUSEDOWN);

document。onmousedown=click;

document。oncontextmenu = new Function(〃return false;〃)

function click(e) {

if (document。all) {

if (event。button==2||event。button==3) {

oncontextmenu='return false';

if (document。layers) {

if (e。which == 3) {

oncontextmenu='return false';

if (document。layers) {

document。captureEvents(Event。MOUSEDOWN);