anchor.diff:  <INPUT type="hidden" name="deletedInstrRowNum" value = "">
   <INPUT type="hidden" name="addInstructorId" value = "">
   <INPUT type="hidden" name="hdnOp" value = "">
  +
  +<SCRIPT language="javascript">
  +	<!--
  +		<%= JavascriptFunctions.getJsConfirm(Web.getUser(session)) %>
  +		
  +		function confirmUnassignAll() {
  +			if (jsConfirm!=null && !jsConfirm)
  +				return true;
  +
  +			if (!confirm('Do you really want to unassign all instructors?')) {
  +				return false;
  +			}
  +
  +			return true;
  +		}
  +
  +	// -->
  +</SCRIPT>
   
   	<TABLE width="93%" border="0" cellspacing="0" cellpadding="3">
   		<TR>
  
positive.code: <%@ page import="org.unitime.timetable.model.DepartmentalInstructor" %>
  <%@ page import="org.unitime.timetable.form.ClassInstructorAssignmentForm" %>
  <%@ page import="org.unitime.commons.web.Web" %>
  <%@ taglib uri="/WEB-INF/tld/struts-bean.tld" prefix="bean" %>
  <%@ taglib uri="/WEB-INF/tld/struts-html.tld" prefix="html" %>
  <%@ taglib uri="/WEB-INF/tld/struts-logic.tld" prefix="logic" %>
  
negative.code: <%--
   * UniTime 3.1 (University Timetabling Application)
   * Copyright (C) 2008-2009, UniTime LLC
   * 
   * This program is free software; you can redistribute it and/or modify
   * it under the terms of the GNU General Public License as published by
  