javascript: 禁用右键、文本选择功能、复制按键

<script type="text/javascript">
//禁用右键、文本选择功能、复制按键 //http://www.jinyuanbao.cn
$(document).bind("contextmenu",function(){return false;});
$(document).bind("selectstart",function(){return false;});
$(document).keydown(function(){return key(arguments[0])});
</script>