How to organize news selection from the list (JavaScript + RSS or HTML parser)?

Question

JavaScript

I parse data from the server using an HTML or RSS parser.
Each entry has a common CSS style id and a unique ID passed to the JS function (in the class="id" or date-id="id" attribute);
But since this data is loaded from the server or set in the JS code itself, the function that tracks clicks on these records to navigate using WinJS.Navigation.navigate does not work.
Actually, how to make the function for tracking clicks on data loaded from outside in the same JS file work? I write in Visual Studio under Windows Market.
Click tracking function:

function ToStory(eventInfo) {
        var link = eventInfo.target;
        var storyid = link.className;
        if ((storyid == '') || (storyid == 0)) {
            WinJS.Navigation.back(10).done();
        } else {
            WinJS.Navigation.navigate("/pages/story/story.html");
        }
    }

RSS data download function:

function loadRemoteXhr() {

        document.getElementById("topstory").innerHTML = "";
        WinJS.xhr({ url: "ссылка на RSS" }).then(
            xhrParseXml, xhrError
            );

    }

    function xhrParseXml(result) {

        var outputArea = document.getElementById("topstory");
        var xml = result.responseXML;


        if (xml) {
            var items = xml.querySelectorAll("rss > channel > item");
            if (items) {
                var length = Math.min(10, items.length);
                for (var i = 0; i < length; i++) {
                    var link = document.createElement("li");
                    link.setAttribute("id", "tostory");
                    link.setAttribute("class", items[i].querySelector("link").textContent);
                    link.innerText = items[i].querySelector("title").textContent;
                    outputArea.appendChild(link);
                }
            } else {
                outputArea.innerHTML = "There are no items available at this time";
            }
        } else {
            outputArea.innerHTML = "Unable to retrieve data at this time. Status code: " + statusCode;
        }
    }
    function xhrError(result) {

        var statusCode = result.status;
        var outputArea = document.getElementById("topstory");
        outputArea.innerHTML = "Unable to retrieve data at this time. Status code: " + statusCode;
    }

Function call:

//RSSload
loadRemoteXhr();

//Навигация
tostory.addEventListener("click", ToStory, false);

HTML code:

<div id="blocks">
<div id="blocktit">Популярные истории</div>
<ul id="topstory"></ul>
</div>