Ruby on Rails

<script>
$(document).ready(function () {
  $('#listing_format').change(function(e)
   {
    if (e.target.value=('Fixed price') {$("#listing_starting_bid").toggle( "blind" ); }
  })
})
</script>

<%= form_for(@listing) do |f| %>
  <% if @listing.errors.any? %>
    <div id="error_explanation">
      <h2><%= pluralize(@listing.errors.count, "error") %> prohibited this listing from being saved:</h2>

etc ...

I want the document above to apply the blind effect to the starting bid field but nothing changes in the browser