How this piece of html code is encoded from commandLink?Help!

Question

Hi, this is the jsf code:
<h:panelGrid columns="1">
                     <h:dataTable value="#{temp.nameFile}" var="myL"
                         rendered="#{temp.show1}">
                         <h:column>
                              <h:commandLink actionListener="#{temp.create}" value="#{myL.name}"
                                   immediate="true">
                                   <f:param name="name" value="#{myL.name}" />
                                   <f:param name="path" value="#{myL.path}" />
                              </h:commandLink>
                         </h:column>
                    </h:dataTable>
               </h:panelGrid>And this is the html code it generates:
<table>
     <tbody>
          <tr>
               <td>
               <table>
                    <tbody>
                         <tr>
                              <td><a href="#"
                                   onclick="document.forms['_id0']['_id0:_idcl'].value='_id0:_id2:0:_id4';
                                                         document.forms['_id0']['name'].value='ISO-3166';
                                                         document.forms['_id0']['path'].value='D:/Tomcat5.0/webapps/test/WEB-INF/iso3166.xml';
                                                         document.forms['_id0'].submit(); return false;">ISO-3166</a></td>
                         </tr>
                         <tr>
                              <td><a href="#"
                                   onclick="document.forms['_id0']['_id0:_idcl'].value='_id0:_id2:1:_id4';
                                                          document.forms['_id0']['name'].value='NAICS';
                                                          document.forms['_id0']['path'].value='D:/Tomcat5.0/webapps/test/WEB-INF/naics.xml';
                                                          document.forms['_id0'].submit(); return false;">NAICS</a></td>
                         </tr>
                         <tr>
                              <td><a href="#"
                                   onclick="document.forms['_id0']['_id0:_idcl'].value='_id0:_id2:2:_id4';
                                                         document.forms['_id0']['name'].value='UNSPSC';
                                                         document.forms['_id0']['path'].value='D:/Tomcat5.0/webapps/test/WEB-INF/unspsc.xml';
                                                         document.forms['_id0'].submit(); return false;">UNSPSC</a></td>
                         </tr>
                    </tbody>
               </table>
               </td>
          </tr>
     </tbody>
</table>there is a line of html code like this:
document.forms['_id0']['_id0:_idcl'].value='_id0:_id2:1:_id4';I know that "_id0" is the form ID, and "_id0:_idcl" is the clientID,but what is the value part "_id0:_id2:1:_id4" and what is the meaning of each part?I am writing my custom renderer, so i need to know how it is encoded,please help:)
Best Regards:)
Robin

Answer 1

_id0 - id of the form
_id2 - id of the datatable
1 - row index
_id4 - id of the commandlink