var createUrl = function(collection, uuid) {
    return 'https://online.moysklad.ru/exchange/rest/ms/xml/' +
        collection + '/list/?filter=uuid%3D' + uuid;
}

var enumerate = function(xml) {
    result = {};
    $.each($(xml)[0].attributes, function(i, attr) {
        result[attr.name] = attr.value;
    });
    $.each($(xml)[0].childNodes, function(i, node) {
        result[node.tagName] = node.textContent;
    });
    return result;
}

var enumerateCompany = function(rootName, result) {
    return $.extend({},
        enumerate($(rootName, result)),
        enumerate($(rootName + ' requisite', result)),
        enumerate($(rootName + ' bankAccount', result))
    )
}

var uuid = location.hash.replace(/^.+id=/, '');
var contractUrl = createUrl('Contract', uuid)
$.get(contractUrl, function(result) {
    var contract = enumerate($('contract', result));

     $.get(createUrl('Company', contract.agentUuid), function(result) {
        var contragent = enumerateCompany('company', result);
        $.get(createUrl('MyCompany', contract.ownCompanyUuid), function(result) {
            var myCompany = enumerateCompany('myCompany', result);
            console.log(contract, contragent, myCompany);
        })
    });
});