anchor.diff: +<%@page import="java.util.ArrayList"%>
   <%@page import="com.appspot.freya_app.freya.model.Dimension"%>
   <%@ page contentType="text/html;charset=UTF-8" language="java"%>
   <%@ page import="java.io.IOException"%>
  
positive.code: 			value="<%=(artwork.getDimension() == null) ? "" : artwork
  					.getDimension().getZ()%>" />
  		<br /> Summary:
  		<textarea name="summary">
  				<%=(artwork.getSummary() == null) ? "" : (artwork.getSummary().equals("")) ? "" : artwork.getSummary()%>
  			</textarea>
  		<br /> Comments: <br /> Tags: <br /> <input type="submit"
  			value="Submit" />
  	</form>
  </div>
  
negative.code: 				artwork = new Artwork();
  			}
  
  			String title, support, technique, date, summary, tags = null;
  			artistName = request.getParameter("artist");
  			title = request.getParameter("title");
  			support = request.getParameter("support");
  			technique = request.getParameter("technique");
  			date = request.getParameter("date");
  			summary = request.getParameter("summary");
  			tags = request.getParameter("tags");
  			
  			if(tags != null) {
  				String tagArray[] = tags.split(";");
  				ArrayList<String> strings = new ArrayList<String>();
  				for(String s : tagArray) {
  					strings.add(s);
  				}
  				artwork.setTags(strings);
  			}
  
  			if (artistName != null && title != null && support != null
  					&& technique != null && date != null
  