xmlhttp send to send a single object from a XML file

Question

I am currently using xmlhttp send to PUT something back onto the webservice:

My XML :

<collection>
 <beanRepresentation>
  <beanRepId>1323</beanRepId>
  <beanRepName>john</beanRepName>
 </beanRepresentation>

  ...more <beanRepresentations> ..

</collection>

I pull this XML, make some changes using through my HTML page. And now I want to use PUT to update the changes I made to beanRepresenetation.

I do not want to update the whole XML, just the single object I made changes in. I am doing it like the following:

xmlhttp.open("PUT","http://localhost:8080/rest/beanRepresentation",
                                    false);
xmlhttp.setRequestHeader("Content-type","application/xml");
xmlhttp.send((xmlDoc.getElementsByTagName("beanRepresentation")[0]));

firebug says:

PUT http://localhost:8080/rest/beanRepresentation 400 Bad Request

and the Source shows this is what I am sending:

[object Element]

This is the problem, why aren't I sending this back:

<collection>
 <beanRepresentation>
  <beanRepId>1323</beanRepId>
  <beanRepName>Updated Name</beanRepName>
 </beanRepresentation>

</collection>

?? I need it to PUT it back like the above format, not " [Object Element] ".

Answer 1

弄清楚了：

xmlhttp.send((new XMLSerializer()).serializeToString(xmlDoc.getElementsByTagName("beanRepresentation")[i]));