javascript:(function() {
        var a = {  }, 
            b =[], i, e, c, k, d, s =
               "<table border=1>
                <thead>
                   <tr><th>#</th>
                      <th>Tag</th>
                      <th>className</th>
                   </tr>
                </thead>";
        for (i = 0; 
             e = document.getElementsByTagName("*")[i];
             ++i) 
             if (c = e.className) {
                 k = e.tagName + 
                     "." + c; 
                 a[k] = a[k] ? a[k] + 1 : 1;
             }
        for (k in a) b.push([k, a[k]]); b.sort();
        for (i in b) s +=
            "<tr><td>" + b[i][1] 
                 + "</td><td>" 
                 + b[i][0].split(".").join("</td><td>") 
                 + "</td></tr>"; s += "</table>";
        d = open().document; d.write(s); d.close();}
)