how to do select my location and desplay it in google map

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Javascript

PHP

google-api

Hello I am using this google map to select user location when user wont to register select latitude and longitude and display in map.

code select my location from latitude and longitude but not display in map.

this is the link for test http://prestito.engmutaz-ghosheh.com/html/register.php/

and this is the code i am using:

<script>
	var options = {
  enableHighAccuracy: true,
  timeout: 5000,
  maximumAge: 0
};

function success(pos) {
  var crd = pos.coords;
alert("Location changed. New location (" + crd.latitude + ", " + crd.longitude + ")");
  console.log('Your current position is:');
  console.log('Latitude : ' + crd.latitude);
  console.log('Longitude: ' + crd.longitude);
  console.log('More or less ' + crd.accuracy + ' meters.');
};

function error(err) {
	alert("Err");

  console.warn('ERROR(' + err.code + '): ' + err.message);
};

	navigator.geolocation.getCurrentPosition(success, error, options);

	function initialize() {
  var mapProp = {
    center:new google.maps.LatLng(31.9497,35.9328),
    zoom:5,
    mapTypeId:google.maps.MapTypeId.ROADMAP
  };
  var map=new google.maps.Map(document.getElementById("googleMap"),mapProp);
}
google.maps.event.addDomListener(window, 'load', initialize);