Hi Phil, i got a problem on calling the method. i intended to call a search (SQL method) statement, which exactly like this: comment:to select one SQL method <dtml-if "_['patient_name']!='' and _['patient_id']==''"> <dtml-call "REQUEST.set('b', Search_patient3)"> <dtml-elif "_['patient_id']=='' and _['patient_name']==''"> <dtml-call "REQUEST.set('b', Selectallpatient)"> </dtml-if> comment:to use the SQL method which already declared in above <dtml-in b>......</dtml-in> After the DTML method was called out, it still can return the first page correctly but when i click on the --next XXX records-- it return the error message like this: Error Type: KeyError Error Value: patient_name Traceback:................. File C:\Program Files\WebSite\lib\python\DocumentTemplate\DT_Util.py, line 339, in eval (Object: _['patient_name']!='' and _['patient_id']=='') (Info: _) File <string>, line 0, in ? File C:\Program Files\WebSite\lib\python\DocumentTemplate\DT_Util.py, line 161, in careful_getitem KeyError: (see above) Is the above if-else statement gone wrong? it seems failed to pass the parameter to the next page, I tried to display the even and odd record in different color, but also can not work Angie --------------------------------- Do You Yahoo!? Make international calls for as low as $.04/minute with Yahoo! Messenger http://phonecard.yahoo.com/