anchor.diff:  
   fieldset {
     display:block;
  -  background:#CEE3F6;
     margin:auto;
  -  text-align:center;
   }
   
   legend {
  
positive.code: 									phylocanvas = new Smits.PhyloCanvas(
  										dataObject,
  										'svgCanvas', 
  										600, 600				
  									);
  								},
  								onFailure: function(){ 
  
negative.code:                     	<legend>Tree window</legend>
  						<script type="text/javascript">
  						function drawjsPhyloSVGTree(namespacedGUID,ntax){
  							var uri = "/treebase-web/phylows/tree/" + namespacedGUID + "?format=nexml";
  							new Ajax.Request(uri,{
  								method     : 'get',
  								onComplete : function(transport) {
  