jQuery parsing XML: get an element with a specific attribute

var xml='<cards>\
        <card id="3">\
          <name lang="es"></name>\
          <description lang="es"></description>\
          <name lang="en"></name>\
          <description lang="en"></description>\
        </card></cards>';

and the jquery part

$(xml).find('Card').each(function(i,j)
    {           
       console.log($(j).attr("id"));
       console.log($(j).find("name").attr("lang"));

    });

http://www.jsfiddle.net/VZjmV/6/

To answer the specific questions, "How can I pass this argument to function parserCardsXml(xml)?"

function loadCards(lang)
{
    $.ajax({
        type: "GET",
        url: 'data/english.xml',
        dataType: "xml",
        success: function (xml) { parseCardsXml(xml, lang); }
    });
}

And, "How can I get name and description with a specific attribute?"

function parseCardsXml(xml, lang)
{
    var $xml = $(xml),
        name = $xml.find('name[lang="' + lang + '"]').text(),
        desc = $xml.find('desc[lang="' + lang + '"]').text();
}