Blogspot, random label, YQL

    /**
    * @author Manish Raj
    * @website http://www.technoslab.in
    */

    // Configure
    var blog_url = 'www.technoslab.in'; // Just the host. Example. yourblog.blogspot.com
    var max_labels = 50; // Maximum number of random labels to show.
    var label_element = 'labels'; // id of the element where labels would be displayed. Example: <div id="labels"></div>

    function showLabels(){
        var queryUrl = 'http://query.yahooapis.com/v1/public/yql?q=select%20feed.category%20from%20json%20where%20url%3D%22http%3A%2F%2F' + blog_url + '%2Ffeeds%2Fposts%2Fsummary%3Falt%3Djson%26max-results%3D0%22&format=json&callback=labelCb'
        var script = document.createElement('script');
        script.setAttribute('type', 'text/javascript');
        script.setAttribute('src', queryUrl);
        document.getElementsByTagName('body')[0].appendChild(script);
    }

    // Label Callback
    function labelCb(response){
        var html = '';
        if(response.query.count > 0){
            response.query.results.json = response.query.results.json.shuffle();
            for(var i = 0; i < response.query.count && i < max_labels; i++){
                html += '<a href="http://'+blog_url+'/search/label/'+response.query.results.json[i].feed.category.term+'">'+response.query.results.json[i].feed.category.term+'</a>, ';
            }
        }
        document.getElementById(label_element).innerHTML = html;
    }

    // From SO: http://stackoverflow.com/questions/6274339/how-can-i-shuffle-an-array-in-javascript
    Array.prototype.shuffle = function () {
    for (var i = this.length - 1; i > 0; i--) {
        var j = Math.floor(Math.random() * (i + 1));
        var tmp = this[i];
        this[i] = this[j];
        this[j] = tmp;
    }
        return this;
    }

    // Load and show labels
    window.onload = function(){
        showLabels();
    }