anchor.diff:  	<script type="text/javascript"
   		src="http://ajax.googleapis.com/ajax/libs/jquery/2.1.0/jquery.min.js"></script>
   	<script type="text/javascript" src="./js/jquery.zclip.min.js"></script>
  +	<script type="text/javascript" src="//netdna.bootstrapcdn.com/bootstrap/3.1.0/js/bootstrap.min.js"></script>
   	<script type="text/javascript">
   
   	var _gaq = _gaq || [];
  
positive.code: <link href='http://fonts.googleapis.com/css?family=Gudea:400,700'
  	rel='stylesheet' type='text/css'>
  <link href='http://fonts.googleapis.com/css?family=Inconsolata' rel='stylesheet' type='text/css'>
  <link href="./css/bootstrap.css" rel="stylesheet">
  <style type="text/css">
  * {
  	font-family: 'Gudea', sans-serif;
  }
  input[type='text'], textarea {
  	width: 780px;
  	padding: 10px;
  	font-family: 'Gudea', sans-serif;
  	font-size: 17px;
  
negative.code: 			<form id="test_form" action="javascript:void(0);">
  				<div class="block">
  					<label for="target_text">Target text</label>
  					<textarea id="target_text" class="form-control" tabindex="1"></textarea>
  				</div>
  				<div class="block">
  					<label for="match_pattern">Regex pattern</label>
  					<input type="text" id="match_pattern" class="form-control" tabindex="2" />
  					<div style="text-align: right">
  						<a href="javascript:void(0);" id="copy_match_pattern">Copy</a>
  					</div>
  				</div>
  				<div class="block">
  					<label for="replace_pattern">Replacement</label> 
  					<input type="text" id="replace_pattern" class="form-control" tabindex="3" />
  					<div style="text-align: right">
  						<a href="javascript:void(0);" id="copy_replace_pattern">Copy</a>
  					</div>
  				</div>
  				<div class="block" style="text-align: right;">
  					<input type="submit" value="TEST" tabindex="4" class="btn btn-primary" />
  				</div>
  			</form>
  			<div class="block">
  