search location using map api key

<script src="http://maps.googleapis.com/maps/api/js?key=AIzaSyDbL602c3wuGekB0jaL92ftXF2cNtwFZDQ&libraries=places"

 type="text/javascript"></script>

 

        <script type="text/javascript">

               function initialize() {

                       var input = document.getElementById('txtAddress');

                       var autocomplete = new google.maps.places.Autocomplete(input);

               }

               google.maps.event.addDomListener(window, 'load', initialize);

       </script>

<label >Address:</label>

    

   <input type="text" name="address" id="txtAddress" class="showroom-aeras" 

value="<?php echo $data_res['address'];?>" placeholder="Enter address here" data-type='address' />

    <input type="hidden" id="txtLocation" data-type='location-store' />