var form = nlapiCreateForm('Form');
			nlapiLogExecution('DEBUG',' before add field ');	
			var internalIdInputField = form.addField('custpage_xxinternalIdxx', 'text');
			internalIdInputField.setLayoutType('outsideabove', 'startrow');
			nlapiLogExecution('DEBUG',' after add field ');	
		    form.addSubmitButton('Fulfill Order');
		    response.writePage(form);

that's my whole code of the suitelet, I can see first logging but can not see second unless I change internalId in custpage_xxinternalIdxx to something different