JavaScript 读取 XML 并输出到 div 的方法

<nooo>
<note>
<to>George</to>
<from>John</from>
<heading>Reminder</heading>
<body>Don't forget the meeting!</body>
</note>
<note>
<to>a</to>
<from>John</from>
<heading>Reminder</heading>
<body>Don't forget the meeting!</body>
</note>
<note>
<to>George</to>
<from>John</from>
<heading>Reminder</heading>
<body>Don't forget the meeting!</body>
</note>
</nooo>

<!DOCTYPE html>
<html>
  <head>
    <meta charset="utf-8">
    <title>www.jb51.net js读取xml</title>
    <style>
     .aaaa{width: 30%;height: 50px;line-height: 50px;text-align: center;border: 1px solid darkblue;float: left;}
    </style>
  </head>
  <body>
    <div id="xmlid"></div>
    <script>
      xmltext = new XMLHttpRequest;
      xmltext.open("GET","note.xml",false);
      xmltext.send();
      a = xmltext.responseXML;
      //document.getElementById("xmlid").innerHTML = a.getElementsByTagName("to")[2].childNodes[0].nodeValue;
      x = a.getElementsByTagName("note");
      for(i=0;i<x.length;i++)
      {
        document.write("<div class='aaaa'>");
        document.write(x[i].getElementsByTagName("to")[0].childNodes[0].nodeValue);
        document.write("</div>");
        document.write("<div class='aaaa'>");
        document.write(x[i].getElementsByTagName("heading")[0].childNodes[0].nodeValue);
        document.write("</div>");
        document.write("<div class='aaaa'>");
        document.write(x[i].getElementsByTagName("body")[0].childNodes[0].nodeValue);
        document.write("</div>");
      }
    </script>
  </body>
</html>