observe_field :function show hide doesnt work

<script>
function show_custom_repeat(){
    // var val = $('event_template_freq').getVal();
    // switch(parseInt(val)){
    // case 5:
      $('custom_repeat').show();
    // break;
  // }
};
</script>

Repeat: <%= select(:event_template, :freq, {:None => "0", :Daily =>
"1", :Weekly => "2", :Monthly => "3", :Yearly => "4", :custom =>
"5" }, {:selected => :None}) %>

<% observe_field("event_template_freq", :function =>
'show_custom_repeat') %>

<div id="custom_repeat" style="display: none;">

</div>

i use fire bug and no errors, i'm sure its just my syntax can anyone
help?
Ami

<script>
function show_custom_repeat(){
// var val = $('event_template_freq').getVal();
// switch(parseInt(val)){
// case 5:
$('custom_repeat').show();
// break;
// }};

</script>

Repeat: <%= select(:event_template, :freq, {:None => "0", :Daily =>
"1", :Weekly => "2", :Monthly => "3", :Yearly => "4", :custom =>
"5" }, {:selected => :None}) %>

<% observe_field("event_template_freq", :function =>
'show_custom_repeat') %>

2 things:
- That needs to be <%=
observe_field just returns the appropriate javascript statement so if
you use <% then that javascript is never inserted into the view.
- while the statement show_custom_repeat is legal javascript, it is a
statement with no effect, it just evaluates to the function object (in
the same way that in ruby the expression "Object" is perfectly legal
but doesn't do an awful lot). If you want to call your function you
need show_custom_repeat() instead of show_custom_repeat

Fred