Wordcount bookmarklet

wc.js

document.body.appendChild(document.createElement('script')).src='http://code.jquery.com/jquery-1.4.3.min.js';

setTimeout(function () {
  $("textarea").after(function () { 
    return "<p style='color:blue;'>Word count: <b>"+$(this).val().split(/\s+/).length+"</b></p>" 
  });
  wc = function(ta) { ta.siblings().html('Word count: <b>'+ta.val().split(/\s+/).length+'</b>'); };
  $("textarea").keypress(function() { 
    wc($(this)); 
  }
)},500);