i think the problem is that only on the first load the $
('select#conversation_dropdown_text').change(function(){ is executed
that means that the change() is only applied to
select#conversation_dropdown_text on the initial load
on reload you would need to retrigger the change() on the
select#conversation_dropdown_text
to do that include the script in the LOAD component
script = SCRIPT("$
('select#conversation_dropdown_text').change(function()
{ alert('meow'); }); ...", _type = "text/javascript")
e.g. return {'conversation_dropdown':TAG[''](script,
conversation_dropdown)}

On Oct 26, 9:18 pm, Luther Goh Lu Feng <elf...@yahoo.com> wrote:
> This problem might be related to the one 
> athttp://groups.google.com/group/web2py/browse_thread/thread/1eead541f5...
>
> The view console.html has two drop down selects. The 1st dropdown
> select (id="worksheet-list") activates loads a component via
> javascript when changed. The second dropdown select will trigger an
> alert dialog when changed.
>
> When the page is freshly loaded, the second dropdown works as
> expected. After a fresh reload, the 1st dropdown works as expected
> too. If the 2nd dropdown is immediately triggered after the 1st
> dropdown, the 2nd dropdown fails, ie no dialog box appears. And there
> are no errors in the javascript console.
>
> I did a diff of the source code when the 2nd dropdown was working
> after a fresh reload, and when it fails, and found very very small
> differences in the source:http://tinypic.com/r/muzcyh/7
>
> I hope someone can aid me in explaining the cause of these
> observations and help me debug this. Thanks in advance.
>
> #console.html
>
>         <select id="worksheet-list">
>         {{ for wk in worksheets: }}
>                 <option value="{{=wk.id}}">{{=wk.subject}}: 
> {{=wk.name}}</option>
>         {{ pass }}
>         </select>
>
>         <script>
>         <!-- Load comment component based on dropdown selected -->
>                 $(document).ready(function(){
>                         
> $('select#conversation_dropdown_text').change(function(){
>                                 alert('meow');
>                         });
>
>                         $('select#worksheet-list').change(function(){
>                                 
> web2py_component("/roverus/comment/conversation_dropdown.load/" + $
> ('#worksheet-list').val(),"sidebar-header")
>
>                         });
>                 })
>         </script>
>
>         <h1>Conversation</h1>
>         <div id="sidebar-header">
>         {{ block sidebar-header }}
>                 {{=LOAD('comment', 'conversation_dropdown.load',
> args=[request.args[0]], ajax=False)}}
>         {{ end }}
>         </div>
>
> ==============================================
>
> #comment.py
>
> def conversation_dropdown():
>         '''This action returns a dropdown component'''
>
>         # Pull the worksheet requested
>         w = db.worksheet(request.args(0))
>
>         # Create the manage the conversation selector dropdown
>         conversation_dropdown = SQLFORM.factory(
>                 Field('text', label='Select a conversation',
> requires=IS_IN_DB(db(db.question.worksheet==w), 'question.id',
> 'question.text', orderby='question.id')), _id='conversation_dropdown',
> table_name="conversation_dropdown")
>
>         #hide the submit button
>         submit = conversation_dropdown.element('input',_type='submit')
>         submit['_style'] = 'display:none;'
>
>         #process form dropdown
>         if conversation_dropdown.accepts(request.vars, session):
>                  current_conversation = request.vars.text
>         elif conversation_dropdown.errors:
>                  response.flash = 'Form has errors'
>
>         return {'conversation_dropdown':conversation_dropdown}

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