<script language="javascript">

function document.oncontextmenu() {

return false;

}

</script>

function nocontextmenu(){

if(document.all) {

event.cancelBubble=true;

event.returnvalue=false;

return false;

}}

或者

<body onmousedown="rclick()" oncontextmenu= "nocontextmenu()">

<script language="javascript">

function rclick(){

if(document.all) {

if (event.button == 2){

event.returnvalue=false;

}}}

</script>