怎样删除结点链接啊???
<html><head>
<meta content="text/html;charset=gb2312" http-equiv="Content-Type"/>
<title>DOM添加元素</title>
<script language="javascript" type="text/javascript">
var nr=0;
function addItem(){
var list=document.getElementById("list");
var newNode=document.createElement("li");
var newLink=document.createElement("a");
newLink.setAttribute("href","doRegister.html");
nr++;
var newTextNode=document.createTextNode("结点"+nr);
newLink.appendChild(newTextNode);
newNode.appendChild(newLink);
list.appendChild(newNode);
}
function delItem(){
nr=1;
var oP=document.getElementsByTagName("li")[nr];
oP.parentNode.removeChlid(oP);
nr++;
}
</script>
</head>
<body>
<ul id="list"><li>结点序列</li></ul>
<input type="button" onclick="addItem();" value="增加节点" />
<input type="button" onclick="delItem();" value="删除节点" />
</body>
</html>