// JavaScript Document

isIE=document.all;
isNN=!document.all&&document.getElementById;
isN4=document.layers;


if (isIE||isNN){
document.oncontextmenu=checkV;
}else{
document.captureEvents(Event.MOUSEDOWN || Event.MOUSEUP);
document.onmousedown=checkV;}

function checkV(e){
if (isN4){
if (e.which==2||e.which==3){

return false;
}}else{

return false;}}