How to use responseXML to parse xml

Question

Hi,
I am sending this xml from server
<assignmentList>
<assignment>
<id>333</id><name>1170235257994</name><fileClass>4</fileClass><checked_out_by> </checked_out_by><status>s1</status><publication>p1</publication><section>s1</section><change_type>1</change_type><listenerClass>0</listenerClass>
</assignment>
<assignment>
<id>333</id><name>1170235257994</name><fileClass>4</fileClass><checked_out_by> </checked_out_by><status>s1</status><publication>p1</publication><section>s1</section><change_type>1</change_type><listenerClass>1</listenerClass>
</assignment>
</assignmentList>
I need to parse above xml to get id , name,fileclass etc
but in my js
var root = o.responseXML.documentElement;
var length=root.getElementsByTagName('assignment").length;
alert(length); // displays 0.
I need to get the length and iterate to get values from above two tags.
But could not achieve it.
but when I send
<assignmentList>
<assignment>
<id>333</id><name>1170235257994</name><fileClass>4</fileClass><checked_out_by> </checked_out_by><status>s1</status><publication>p1</publication><section>s1</section><change_type>1</change_type><listenerClass>0</listenerClass>
</assignment>
</assignmentList>
alert(length); // displays 1. correct
Can you please show me how I can get correct length and then get values from it
by getting values I mean
var assetId = root.getElementsByTagName('id').firstChild.nodeValue;
currently not working.
waiting for response
thanks

Answer 1

I have similar error
my servlet writer.
response.getWriter().write("<valid>pass</valid>");
        response.getWriter().write("<valid>fail</valid>");
        response.getWriter().write("<good>yes</good>");
        response.getWriter().write("<good>now</good>");
javascript
var msg = responseXML.getElementsByTagName("valid");
     document.getElementById('log').innerHTML  += "<br> " + msg + "....length=" + msg.length;
     for(i=0; i<msg.length; i++){
          document.getElementById('log').innerHTML  += "<br> " + msg.firstChild.nodeValue;
          var newOption = new Option(msg[i], "VALUE");
          document.inputForm.pendingMCObox.options[1] = newOption;
     msg = responseXML.getElementsByTagName("good");
     document.getElementById('log').innerHTML += "<br> " + msg + "....length=" + msg.length;
     for(i=0; i<msg.length; i++){
          document.getElementById('log').innerHTML += "<br> " + msg[i].firstChild.nodeValue;
          var newOption = new Option(msg[i], "VALUE");
          document.inputForm.pendingMCObox.options[1] = newOption;
for some reasons, the length is 0.  What am i doing wrong here?