anchor.diff:  				</c:choose>
   
   			</td>
  -			<td class="rightLabel" colspan="2">&nbsp;
  +			<td class="rightLabel" colspan="2">
  +				&nbsp;
   				<c:choose>
   					<c:when test="${canUserUpdateParticle eq 'true'}">
   						<input type="button" onclick="javascript:updateComposition()" value="Update Surface Groups">
  
positive.code: 			<td class="label">
  				<c:choose>
  					<c:when test="${canUserUpdateParticle eq 'true'}">
  						<html:text property="dendrimer.branch" />
  					</c:when>
  					<c:otherwise>
  						${nanoparticleCompositionForm.map.dendrimer.branch}&nbsp;
  					</c:otherwise>
  				</c:choose>
  			</td>
  
  			<td class="label">
  				<strong>Repeat Unit</strong>
  			</td>
  
negative.code: 			<td class="label">
  				<c:choose>
  					<c:when test="${canUserUpdateParticle eq 'true'}">
  						<html:select property="dendrimer.generation">
  							<option value=""></option>
  							<html:options name="allDendrimerGenerations" />
  							<option value="Other">
  								Other
  							</option>
  						</html:select>
  					</c:when>
  					<c:otherwise>
  						${nanoparticleCompositionForm.map.dendrimer.generation}&nbsp;
  					</c:otherwise>
  				</c:choose>
  			</td>
  			<td class="label">
  				<strong>Other Generation</strong>
  			</td>
  			<td class="label">
  				<c:choose>
  					<c:when test="${canUserUpdateParticle eq 'true'}">
  						<html:text property="dendrimer.otherGeneration" />
  					</c:when>
  					<c:otherwise>
  						&nbsp;
  					</c:otherwise>
  				</c:choose>
  			</td>
  
  			<td class="label">
  				<strong>Molecular Formula</strong>
  			</td>
  