anchor.diff:  		</tr>
       </c:when>
       <c:otherwise>
  -        <c:set var="selected_site" value="0"/>
  -        <c:if test="${not empty selectedSite}">
  -            <c:set var="selected_site" value="${selectedSite}"/>
  -        </c:if>
     <div>
         <input type="hidden" name="_action" value="">
         <input type="hidden" name="_selected" value="">
  
positive.code: 
      <table border="0" id="investigatorsTable" cellspacing="0" class="tablecontent">
          <tr>
              <th><span class="required-indicator">Investigator</span></th>
              <th><span class="required-indicator">Role</span></th>
              <th><span class="required-indicator">Status</span></th>
              <th></th>
  
negative.code: 
  
  <html>
  <c:set var="selected_site" value="0"/>
  <c:if test="${not empty selectedSite}">
  	<c:set var="selected_site" value="${selectedSite}"/>
  </c:if>
  <head>
  <tags:includeScriptaculous/>
  <tags:dwrJavascriptLink objects="StudyAjaxFacade"/>
  