Second GetelementbyTagname in another GetelementbyTagname

Question

hello,

i am parsing a XML string to an XML Document in Javascript. The xml structure might look like this:

 <parent>
     <parent2>
        <x>
           <y1/>
           <xyz>
               <tra/>
           <xyz>
           <y2/>
        </x>
        <x>
           <y1/>
        </x>
        ..
     </parent2>
 </parent>

Now i want to iterate through x .. I did all the time with getElementsByTagName() but if i want to get a node inside x i am using this function twice and this doensnot work:

var cX=xmldoc.getElementsByTagName('x');
alert(cX.getElementsByTagName('tra')[0].innerHTML)

So how i can solve the problem? the name and position of x is even fixed and might not change. But the content inside x can change in its structure. And so i would like to use the getElementsByTagName() because i haven't to know the exakt position in tree! But how to use getElementsByTagName() nested?

Thanks for your help!

Update: Everything works fine for XML too! for example: alert(xmldoc.getElementsByTagName('x')[2].getElementsByTagName('tra')[0].firstChild.nodeValue); Thanks for the help!

Answer 1

The getElementsByTagName function does not return an XML document. It returns an array of elements. Therefore, you cannot call The getElementsByTagName function again.

Answer 2

Everything works fine with XML Document too! for example: alert(xmldoc.getElementsByTagName('x')[2].getElementsByTagName('tra')[0].firstChild.nodeValue);