读xml文件 的值

Question

js:
<script>
loadXML = function(xmlFile)
{
    var xmlDoc;
    if(window.ActiveXObject)
    {
        xmlDoc = new ActiveXObject('Microsoft.XMLDOM');
        xmlDoc.async = false;
        xmlDoc.load(xmlFile);
    }
    else if (document.implementation&&document.implementation.createDocument)
    {
        xmlDoc = document.implementation.createDocument('', '', null);
        xmlDoc.load(xmlFile);
    }
    else
    {
        return null;
    }
    
    return xmlDoc;
}var xmlDoc = loadXML('1.xml');         var v = 这里该如何写
        alert(v)
</script>xml:
<?xml version="1.0" encoding="utf_8"?>
<root>
     <title name="aa">rrrrrrrrrrrrrrrrr</title>
     <title name="bb">假如乔峰穿越到多情</title>
     <title name="cc">[乱弹]小说《鹿鼎记》里面阿珂在和小宝之前，有没有失身给郑克爽？？</title>
     <title name="dd">[评论]上海诸翟关帝庙举行大型祈福法会 祈国泰民安</title>
    
</root></script>如何根据 title中的name值 得到title中的值 
比如我传aa,得到"rrrrrrrrrrrrrrrrr"

Answer 1

xmldoc.getElementsByTagName('root').function getvalue(obj,name)
{
    var titles=obj.getElementsByTagName("title");
    for(var i=0;i<titles.length;i++)
    {
       var title=titles[i];
       if(title.name==name)
       {
          return title.innerHTML;
       }
    }
}
getvalue(xmlDoc,"aa")