jQuery Simple Example

HTML

<script src="//www.addressfinder.co.nz/assets/v2/widget.js"></script>
<label for="txtPesquisa">pesquisa</label>
<input type='text' id='txtPesquisa' />

<div class="pedidos">

  <div id="1" class="hide">
  1
  </div>

  <div id="2" class="hide">
  2
  </div>

  <div id="3" class="hide">
  3
  </div>

</div>

CSS

body {
    padding: 5px;
}

label {
    font-weight: bold;
}

input[type=text] {
    width: 20em
}
.hide{
  display: none;
}

p {
    margin: 1em 0 0;
}

JavaScript

$(document).ready(function() {
  $("#txtPesquisa").keyup(function(index){  
    $(".pedidos div").hide();
    $(".pedidos #"+$(this).val()).show();
  });
});