Rails - Oct 2006 - draggable_element. . is there a way?

Is there a way to hook into a draggable_element so that I could update
the location of the element in my rails code?  So say I had a draggable
called "frame", when I stop dragging, I want to do something that
would
be the equiv of session[:frame][:loc] = (current location of frame).

There''s a change callback on the draggable_element it looks like, but
not quite sure how to get from there to here.

Any help appreciated.

H


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I seem to be fairly close.  However, there is still one hangup I would
like to see if anybody has an answer for.   I''ve discovered the :with
=> option for the remote functions.  So now I have this defined in my
element''s div tag:

<div
  id = "<%= frame.id %>_title"
  class = "<%= frame.html_set%>_title"
  style="
    border: solid blue 1px;
    position: absolute;
    left: 0px;
    top: 0px;
    width: 100%;
    height: 25px;"
  onmouseup="<%= remote_function :url => { :controller =>
"test",
:action => "doit", :with =>
''document.getElementById("left_top_frame").offsetTop''}
%>">

The goal here is to store the offsetTop, at least, in the request so I
can get it back out in my controller.  However, I''m stuck trying to
figure out a way to escape everything, I''ve tried everything I can
think of.  Here''s what the browser is getting:

  <div
  id = "left_top_title"
  class = "basic_title"
  style="
    border: solid blue 1px;
    position: absolute;
    left: 0px;
    top: 0px;
    width: 100%;
    height: 25px;"
  onmouseup="new
Ajax.Request(''/test/doit?with=document.getElementById%28left_top_frame%29.offsetTop'',
{asynchronous:true, evalScripts:true})">

Anybody have any idea how I could escape that?  Or is there a better
way to go about this?

Thanks!

H


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