Setting a value to a field - php

Question

So I have a field address in open.php, when a user starts to write something will fecth google addresses for auto-completion. When a user selects an address a marker is positioned on the map and lat/long fields are populated.
Now I added de possibility for the user fill the address field in a previous page, then open.php gets the address from url:
<input id="address" type="text" value="<?php echo $_GET['query']; ?>"/>
But then the JS script will not run to populate map, lat and long. How can I solve this?
(I need the possibility for the user fill the address field in a previous page, because user can enter directly on open.php)
Thank you!
Code from JS:
var geocoder;
var map;
var marker;
function initialize(){
//MAP
var latlng = new google.maps.LatLng(49.599,6.134);
var options = {
zoom: 14,
center: latlng,
mapTypeId: google.maps.MapTypeId.HYBRID
};
map = new google.maps.Map(document.getElementById("map_canvas"), options);
//GEOCODER
geocoder = new google.maps.Geocoder();
marker = new google.maps.Marker({
position: latlng,
map: map,
animation: google.maps.Animation.BOUNCE,
draggable: true
});
}
$(document).ready(function() {
initialize();
$(function() {
$("#address").autocomplete({
//This bit uses the geocoder to fetch address values
source: function(request, response) {
// geocoder.geocode( {'address': request.term }, function(results, status) {
geocoder.geocode( {'address': request.term + ', lu' }, function(results, status) {
response($.map(results, function(item) {
return {
label: item.formatted_address,
value: item.formatted_address,
latitude: item.geometry.location.lat(),
longitude: item.geometry.location.lng()
}
}));
})
},
//This bit is executed upon selection of an address
select: function(event, ui) {
$("#latitude").val(ui.item.latitude);
$("#longitude").val(ui.item.longitude);
var location = new google.maps.LatLng(ui.item.latitude, ui.item.longitude);
marker.setPosition(location);
map.setCenter(location);
}
});
});
//Add listener to marker for reverse geocoding
google.maps.event.addListener(marker, 'drag', function() {
geocoder.geocode({'latLng': marker.getPosition()}, function(results, status) {
if (status == google.maps.GeocoderStatus.OK) {
if (results[0]) {
$('#address').val(results[0].formatted_address);
$('#latitude').val(marker.getPosition().lat());
$('#longitude').val(marker.getPosition().lng());
}
}
});
});
});
enter code here

Answer 1

Try something like
$('#address').trigger('change');