anchor.diff:  		if(checkBoxId && document.getElementById(checkBoxId)){
   			document.getElementById(checkBoxId).checked = true;
   			document.getElementById(checkBoxId).value = true;
  +		}
  +		
  +		currentIdentifierCount --;
  +		if(currentIdentifierCount < 2){
  +			$j("#identifiersTbody > tr:visible > td:last-child > input.closeButton").hide();
   		}
   	}
   	
  
positive.code: 	var prefIdentifierElementId = null;
  	var numberOfClonedElements = 0;
  	var idTypeLocationRequired = {};
  	<c:forEach items="${identifierTypes}" var="idType">
  		idTypeLocationRequired[${idType.patientIdentifierTypeId}] = ${idType.locationBehavior == null || idType.locationBehavior == "REQUIRED"};
  	</c:forEach>
  
negative.code: 		var tbody = document.getElementById('identifiersTbody');
  		var row = document.getElementById('newIdentifierRow');
  		var newrow = row.cloneNode(true);
  		
  		newrow.style.display = "";		
  		newrow.id = 'identifiers[' + index + ']';
  		tbody.appendChild(newrow);
  