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   new Ajax.Request( '/url/to/post/to',
   { asynchronous: true,
...
     parameters: Form.serialize(this),
     onComplete: jsFunctionToCallBack
   });

    $.ajax( {
              url: '/url/to/post/to',
...
              complete: jsFunctionToCallBack
            }
          );

s**lil*;  $*=join'',sort split q**;  s;.*;grr; &&s+(.(.)).+$2$1+; $; =
qq-$_-;s,.*,ahc,;$,.=chop for split q,,,reverse;print for($,,$;,$*,$/)