My First Ajax

來源:互聯網
上載者:User
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML>
<HEAD>
<TITLE>My First Ajax</TITLE>
</HEAD><BODY>
<script>
   var xmlHttp;
   function createXMLHttpRequest()
        {
    
           if(window.ActiveXObject)
          xmlHttp=new window.ActiveXObject("Microsoft.XMLHttp");
     else if(window.XMLHttpRequest)
          xmlHttp=new window.XMLHttpRequest();
  
  }   function startRequest()
    {
              createXMLHttpRequest();
     xmlHttp.OnReadyStateChange=HandleStateChange;
     xmlHttp.open("Get","data.xml",true);
              xmlHttp.send(null);
  
    } function HandleStateChange()
  {
     if(xmlHttp.ReadyState==4)
     {
     if(xmlHttp.Status==200)
     {
        try
        {
                           simple();
        }
        catch (exception)
        {
         alert("error");
        }
       
     }
     }  } function simple()
 {
     var str="";
        var pro=document.ajax.name.value;
  var xmlDoc=xmlHttp.responseXML;
  var JiangNode=xmlDoc.getElementsByTagName("pro")[0];
  //alert(JiangNode.getAttribute("name"));
  //alert(pro);
  var detailNode=JiangNode.getElementsByTagName("detail");  for(i=0;i<detailNode.length;i++)
     {
     if(str=="")
     {
      str=str+detailNode[i].childNodes[0].nodeValue;
     }
     else
     {
      str=str+","+detailNode[i].childNodes[0].nodeValue;    
     }
     }
     document.ajax.name.value=str;
 }
</script>
<form action=# name="ajax">
<input type=text name="name"></input>
<input type=button value="Get" onclick="startRequest()"></input>
</form>
</BODY>
</HTML> <?xml version="1.0" encoding="big5" ?>
<root>
<pro name="江蘇省">
   <detail>南京</detail>
   <detail>蘇州</detail>
</pro>
<pro name="浙江省">
   <detail>杭州</detail>
   <detail>寧波</detail>
</pro> 
</root>
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