missing brace and property set to null

[GoogleCodeExporter]

What steps will reproduce the problem?
1.Open this xml file in the browser (FF)

<?xml version="1.0" encoding="UTF-8"?>
<?xml-stylesheet type="text/xsl" href="xml2json.xsl"?>
<animals>
     <dog>
          <name>Rufus</name>
          <breed>labrador</breed>
     </dog>
     <dog>
          <name>Marty</name>
          <breed>whippet</breed>
     </dog>
     <cat name="Matilda"/>
</animals>

What is the expected output? What do you see instead?
the expected result would be:

{"animals":
    {"dog":
        {
        "name":"Rufus",
        "breed":"labrador"
        },
     "dog":
        {
        "name":"Marty",
        "breed":"whippet"
                }
    },
    "cat":{
              "name":"Matilda"
              }
}

and this is what I get

{"animals":
    {"dog":
        {
        "name":"Rufus",
        "breed":"labrador"
        },
     "dog":
        {
        "name":"Marty",
        "breed":"whippet" // missing brace here
    },
    "cat":null // why null ?
}

What version of the product are you using? On what operating system?
Using xml2json-xslt-r3.zip on Linux

Original issue reported on code.google.com by imbibin...@gmail.com on 19 Mar 2010 at 2:01