Ajax Autocomplete for Jquery : How To Send Dynamic Parameters

Question

i am using Ajax Autocomplete for Jquery ( http://www.devbridge.com/projects/autocomplete/jquery/ ) in one of my application. The Search Form looks something lik

Answer 1

Pez's answer didnt work for me just a slight variation with 'extraParams'. This makes the parameters dynamic rather than set on page load...

$("#field").autocomplete('pageurl.php', {     
   width: 240,
   matchContains: true,
   mustMatch: false,
   selectFirst: false,
   extraParams: {
      start:function () { 
           return $("#start_date").val(); 
      },
      end: function () {
           return $("#end_date").val() ;
      }
  } 
});