parsing questino

[ianchaos]

I am being fed an xml document of unknown structure and I need to look for a specific tag and then grap that tag's children. for example

<espc>
<agent>
<txt> Sending flash </txt>
</agent>
<event><cmd> search-off</cmd></event>
<agent>
<cmd x="470" y="243">move</cmd>
<cmd wait="1">wait</cmd>
<cmd>GestureRight</cmd>
</agent>
<flash>
<selection>Grainy</selection>
<selection>Grains</selection>
<selection>Draine</selection>
<selection>Grainer</selection>
<selection>Grained</selection>
<selection>Gradine</selection>
<selection>Grain</selection>
<selection>Grane</selection>
</flash>
</espc>

When I get this information I need to find the <flash> tag and grab what's between that and the </flash>. The information that will come before the <flash> tag will never be the same so the structure will always be different. So how do I go about parsing through the XML to find <flash> and then grab only the information between that and the </flash>
thanks for your time.

[shoehorn]

Well, you could do something like this:

// xmlTree is your XML document

var n = xmlTree.firstChild;
while (n) {
  if (n.nodeType == 1) {
    if (n.nodeName == "flash") {
      // here's your "flash" node
    }
  }
  n = n.nextSibling;
}

If you have multiple "flash" nodes, this will visit them all.