I have a slight issue.

I am running thru some xml - if the first request does not contain the xml I need (getElementsByTagName) I go and request the next in line etc...

I am having as issue because the first xml I request (the default one) exists, but it is empty and I am wasting a call to it which can sometimes take 1.5 - 2 seconds to get a response. I need to check for this, but is there a faster way to just see if the file is empty BEFORE I try to grab the elementsbytagname?

I don't know, I am trying to speed it up any way I can.. I have this:

Code:

function getXML(n){
new Ajax.Request( xmlconfig.filesL[n], {
  method: 'get',
    contentType: "application/xml",
  onSuccess: function( transport ) {
    var itemTags = transport.responseXML.getElementsByTagName( 'item' );
      if(itemTags.length == 0){
      xmlCount++;
        if(xmlCount == xmlconfig.files.length){
            DO SOME DOM BUILDING HERE
          }else{
            getXML(xmlCount) // xml had no usuable data, request next in array.
          }

So, curious if there is a way to someone check to see if that file is empty before I request it or someway know its' empty and just dump it immediately?

any advice appreciated.

If the XHR returns an empty file, then responseXML will be null, won't it? Or am I misreading this question?