setin = window.onload;
window.onload = ocm;
function ocm() {
if(document.getElementById && !window.opera){
t=document.getElementsByTagName('body');
(!document.all)?t[0].setAttribute('oncontextmenu','return(ocmReturn()); ') :
t[0].oncontextmenu=ocmReturn;
}
if(setin)setin();
}
function ocmReturn(){return false;}