JS Ajax transfer XML DOM object to server

Client Code
1<script>2         varIsie =true;3         varXMLHTTP =NULL;4         functionCreatexmlhttp () {//Create a Xmlxmlhttprequest object5             if(xmlhttp = =NULL) {6                 if(window. XMLHttpRequest) {7XMLHTTP =NewXMLHttpRequest ();8                 }9                 Else {TenXMLHTTP =NewActiveXObject ("Microsoft.XMLHTTP"); One                 } A                 //if (xmlhttp = = null) { -                 //alert (' Your browser does not support Ajax '); -                 //} the             } -         if($.browser.msie) {//IE Browser -Isie =true; -             } +             Else { -Isie =false; +             } A              at         } -         //creating an XML document that object is also the first step -         functionCreatedomxml () { -             varDomxml =NULL; -         //IE Browser creates an XML DOM object -             varsigns = ["msxml2.domdocument.5.0", "msxml2.domdocument.4.0",  in  -"msxml2.domdocument.3.0", "Msxml2.domdocument", "Microsoft.XMLDOM"]; to              for(vari = 0; i < signs.length; i++) { +                 Try { -Domxml =NewActiveXObject (Signs[i]); the                      Break; *                 } $                 Catch(e) {}Panax Notoginseng             } -          the             //Other Browsers +             if(Domxml = =NULL) ADomxml = Document.implementation.createDocument ("", "",NULL); the             returnDomxml; +         } -         //The second step: The client gets the data to write in the XML Document Object $         functionCreatexml (DOM) { $             varRoot = doc.createelement ("root");//Create a root node -             varassign_id = doc.createelement ("id");//child Nodes -             varAssign_ans = doc.createelement ("answer");//child Nodes the             if(Isie) { -Assign_id.text = "1";WuyiAssign_ans.text = "1"; the             } -             Else { WuAssign_id.textcontent = "1"; -Assign_ans.textcontent = "1"; About             } $              -              - Root.appendchild (assign_id); -              A Root.appendchild (Assign_ans); +              the dom.appendchild (choose);  -         } $         functionSubmit () { the             varDom =createdomxml (); the createxmlhttp (); the             if(xmlhttp = =NULL) { theAlert ("Your browser does not support Ajax, please try a different browser"); -                 return0; in             } the Createxml (DOM); the              AboutXmlhttp.onreadystatechange =success; theXmlhttp.open ("Post", "Test.aspx",true);//Receive Request page the             //Xmlhttp.setrequestheader ("Content-type", "application/x-www-form-urlencoded"); the Xmlhttp.send (DOM); +         } -  the         functionSuccess ()//Asynchronous handler function when the service returns successfullyBayi         { the             if(Xmlhttp.readystate = = 4) { the alert (xmlhttp.status); -                 if(Xmlhttp.status = = 200) { - alert (xmlhttp.responsetext); the                 } the                 Else { theAlert ("Test Error"); the                 } -             } the         } the</script>

Server-side code
1ProtectedvoidPage_Load (object sender, EventArgs e)2         {3 string res;4request.contentencoding = System.Text.Encoding.GetEncoding ("UTF-8");5XmlDocument xmldoc =NewXmlDocument ();6 xmldoc.load (request.inputstream);7XmlNode node = xmldoc.selectsinglenode ("Choose");8foreach (XmlNode childinchnode. ChildNodes)9             {TenRes +Child.innertext; One             } A Response.Write (res); - Response.End (); -         } the}