diff options
Diffstat (limited to 'actionpack/lib')
| -rw-r--r-- | actionpack/lib/action_view/helpers/prototype_helper.rb | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/actionpack/lib/action_view/helpers/prototype_helper.rb b/actionpack/lib/action_view/helpers/prototype_helper.rb index e19b9097ea..eee2c6a2f4 100644 --- a/actionpack/lib/action_view/helpers/prototype_helper.rb +++ b/actionpack/lib/action_view/helpers/prototype_helper.rb @@ -315,7 +315,16 @@ module ActionView # <tt>:url</tt>:: +url_for+-style options for the action to call # when the field has changed. # <tt>:function</tt>:: Instead of making a remote call to a URL, you - # can specify a function to be called instead. + # can specify javascript code to be called instead. + # Note that the value of this option is used as the + # *body* of the javascript function, a function definition + # with parameters named element and value will be generated for you + # for example: + # observe_field("glass", :frequency => 1, :function => "alert('Element changed')") + # will generate: + # new Form.Element.Observer('glass', 1, function(element, value) {alert('Element changed')}) + # The element parameter is the DOM element being observed, and the value is its value at the + # time the observer is triggered. # # Additional options are: # <tt>:frequency</tt>:: The frequency (in seconds) at which changes to |