js禁止右键和复制功能的代码示例

<script>
/**
* js禁止右键和复制功能
* edit www.jb200.com
*/
function click(e) {
if (document.all) {
if (event.button==1||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;")

var travel=true
var hotkey=17 /* hotkey即为热键的键值,是ASII码,这里99代表c键 */
if (document.layers)
document.captureEvents(Event.KEYDOWN)
function gogo(e)
{ if (document.layers) {
if (e.which==hotkey&&travel){
alert("操作错误.或许是您按错了按键!"); } }
else if (document.all){
if (event.keyCode==hotkey&&travel){ alert("操作错误.或许是您按错了按键!"); }}
}

document.onkeydown=gogo
</script>