highlight your Hatena Star

highLightOwnStar.user.js

// ==UserScript==
// @name           highlightOwnStar
// @namespace      kurain.net
// @include        http://*
// @include        https://*
// ==/UserScript==
(function(){
    function main() {
        GM_xmlhttpRequest({
          method:"GET", 
          url:"http://b.hatena.ne.jp/my.name",
          onload:highlight
        });
    }

    function highlight (json) {
        
        owner_id = eval("(" + json.responseText + ")").name
        var randomColor = function() {
            return 'rgb(' + (Math.random() > 0.5 ? 255 : 0) + ', ' + (Math.random() > 0.5 ? 255 : 0) + ', ' + (Math.random() > 0.5 ? 255 : 0) + ')';
        };

        var style = document.createElement('style');
        document.body.appendChild(style);
        
        var stars = document.querySelectorAll('span.hatena-star-star-container a');
        var classes = [];

        for( var i=0; i < stars.length; i++ ) {
            if ( stars[i].href.indexOf( owner_id ) > 0 ) {
                var ownStarClass = 'ownHatenaStar-' + i;
                classes.push(ownStarClass);
                stars[i].className = stars[i].className + ' ' + ownStarClass;
            }
        }
        
        var apply = function() {
            style.textContent = classes.map(function(selector) {
                if (!selector) return '';
                return '.' + selector + ' { background: ' + randomColor() + ' }';
            }).join("\n");
        };

        setInterval(apply, 0);
    }
    
    window.addEventListener('load', main , false);
    
})();