How to get the xapth of the following phrase where I only have the ID which changes depending upon the user? : To get the xpath where the id changes depending upon the user logged in.

    <td class="dataCell" id="j_id0:mainForm:j_id36:j_id147:tblProduct:13:j_id148" colspan="1" width="3%">
      <span id="j_id0:mainForm:j_id36:j_id147:tblProduct:13:stsGetRatePlan">
       <span id="j_id0:mainForm:j_id36:j_id147:tblProduct:13:stsGetRatePlan.start" style="display: none">
         <img src="/resource/1307120499000/zqu__ajaxLoading" height="18" width="18">
       </span>
       <span id="j_id0:mainForm:j_id36:j_id147:tblProduct:13:stsGetRatePlan.stop">
         <span id="j_id0:mainForm:j_id36:j_id147:tblProduct:13:panProductSelectComplete" onclick="A4J.AJAX.Submit('j_id0:mainForm',event,{'similarityGroupingId':'j_id0:mainForm:j_id36:j_id147:tblProduct:13:j_id149','parameters':{'j_id0:mainForm:j_id36:j_id147:tblProduct:13:j_id149':'j_id0:mainForm:j_id36:j_id147:tblProduct:13:j_id149','selProduct':'a0f6000000386vMAAQ'} ,'status':'j_id0:mainForm:j_id36:j_id147:tblProduct:13:stsGetRatePlan'} )">
    <img id="j_id0:mainForm:j_id36:j_id147:tblProduct:13:imgRadioBtnUnchk" src="/resource/1307120499000/zqu__radioBtnUnChk" height="18" width="18">
       </span>
      </span>
     </span>
    </td>