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POUsing button click instead of body onload
 

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    <p>I'm attempting to use the Google geocoder API to enter user's location information directly into a form (reverse geocoding). I am using the most popular answer in <a href="https://stackoverflow.com/questions/6797569/html5-geolocation-easiest-way-to-get-city-name">this</a> post as a code base. </p> <p>My form is correctly populated when I use <em>body onload="initialize()"</em> as shown in that answer. However when I attempt to initiate the function using a button nothing happens (I remove the body onload attribute). I have tried the following two variations.</p> <pre><code>&lt;a href="javascript:;" style="center" onclick="initiate()" class="button"&gt;Get Geolocation data&lt;/a&gt; &lt;input type="button" value="Get Geolocation Data" onclick="initiate()"&gt; </code></pre> <p>Could someone please point out my mistake? Full code is as follows:</p> <pre><code> &lt;!DOCTYPE html&gt; &lt;html&gt; &lt;head&gt; &lt;meta name="viewport" content="initial-scale=1.0, user-scalable=no"/&gt; &lt;meta http-equiv="content-type" content="text/html; charset=UTF-8"/&gt; &lt;title&gt;Reverse Geocoding&lt;/title&gt; &lt;script type="text/javascript" src="http://maps.googleapis.com/maps/api/js?sensor=false"&gt;&lt;/script&gt; &lt;script type="text/javascript"&gt; var geocoder; if (navigator.geolocation) { navigator.geolocation.getCurrentPosition(successFunction, errorFunction); } //Get the latitude and the longitude; function successFunction(position) { var lat = position.coords.latitude; var lng = position.coords.longitude; codeLatLng(lat, lng) } function errorFunction(){ alert("Geocoder failed"); } function initialize() { geocoder = new google.maps.Geocoder(); } function codeLatLng(lat, lng) { var latlng = new google.maps.LatLng(lat, lng); geocoder.geocode({'latLng': latlng}, function(results, status) { if (status == google.maps.GeocoderStatus.OK) { console.log(results) if (results[1]) { //formatted address alert(results[0].formatted_address) //find country name for (var i=0; i&lt;results[0].address_components.length; i++) { for (var b=0;b&lt;results[0].address_components[i].types.length;b++) { //there are different types that might hold a city admin_area_lvl_1 usually does in come cases looking for sublocality type will be more appropriate if (results[0].address_components[i].types[b] == "administrative_area_level_1") { //this is the object you are looking for city= results[0].address_components[i]; break; } } } //city data alert(city.short_name + " " + city.long_name) } else { alert("No results found"); } } else { alert("Geocoder failed due to: " + status); } }); } &lt;/script&gt; &lt;/head&gt; &lt;body onload="initialize()"&gt; &lt;/body&gt; &lt;/html&gt; </code></pre> <p>Many thanks in advance.</p>
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