<div class="Justnames">
<span class="name">Georgia</span>
</div>

Var example = Nav.Document.GetElementsByTagName("span");

var elementCollection = default(HtmlElementCollection);
   elementCollection = webBrowser1.Document.GetElementsByTagName("span");
   foreach (var element in elementCollection)
   {
        if (element.OuterHtml.Contains("name"))
            // we reach here, we get <span class="example"
    }

foreach (var element in elementCollection)
{
    if (element.GetAttribute("className") == "name")
    // we reach here, we get <span class="example"
}

var test = $(".name").text();
alert(test):