js:获取节点相关的 nodeName,nodeType,nodeValue

1     <script type="text/javascript">
2     //取得input元素的名字 nodeName,类型nodeType值nodeValue;
3             var inputElement=document.getElementById("tid");
4             var nodeName=inputElement.nodeName;
5             var nodeType=inputElement.nodeType;
6             //元素节点的nodeValue返回的是null
7             var nodeValue=inputElement.nodeValue;
8             alert(nodeName+":"+nodeType+":"+nodeValue);
9             
10     //取得input元素属性名字nodeName,类型nodeType,nodeValue
11             var inputElement=document.getElementById("tid");
12             var typeAttrElement=inputElement.getAttributeNode("type");
13             var nodeName=typeAttrElement.nodeName;
14             var nodeType =typeAttrElement.nodeType;
15             var nodeValue=typeAttrElement.nodeValue;
16             alert(nodeName+":"+nodeType+":"+nodeValue);
17     </script>