function BlogPreview(container) {
    this.container_ = container;
}

BlogPreview.prototype.show = function(url, opt_noTitle) {    
    var feed = new google.feeds.Feed(url);
    var preview = this;
    feed.load(function(result) {
        preview.render_(result, opt_noTitle);       
    });
}

BlogPreview.prototype.render_ = function(result, opt_noTitle) {

    if (!result.feed || !result.feed.entries) return;
    while (this.container_.firstChild) {
        this.container_.removeChild(this.container_.firstChild);
    }

    var blog = this.createDiv_(this.container_, "blog");
    if (!opt_noTitle) {
        var header = this.createElement_("p", blog, "");
        //this.createLink_(header, result.feed.link, result.feed.title);
       
    }

    for (var i = 0; i < 2; i++) {
        var entry = result.feed.entries[i];
        var div = this.createDiv_(blog, "item");        
        var linkDiv = this.createDiv_(div, "title");
        this.createLink_(linkDiv, entry.link, entry.title);       
        //        if (entry.author) {
        //            this.createDiv_(div, "author", "Posted by " + entry.author);
        //        }
        //        this.createDiv_(div, "body", entry.contentSnippet);
    }
}

BlogPreview.prototype.createDiv_ = function(parent, className, opt_text) {
    return this.createElement_("div", parent, className, opt_text);
}

BlogPreview.prototype.createLink_ = function(parent, href, text) {
    var link = this.createElement_("a", parent, "", text);
    link.href = href;
    return link;
}

BlogPreview.prototype.createElement_ = function(tagName, parent, className,
                                                opt_text) {
    var div = document.createElement(tagName);
    div.className = className;
    parent.appendChild(div);
    if (opt_text) {
        div.appendChild(document.createTextNode(opt_text));
    }
    return div;
}