javascript - How to get the telephone code of a country detected by geonames? -

i use function of geonames locate countries connect. , problem have fill in phone number field @ beginning telephone code, telephone code depends of country. in solution, code works if select country, when page charged (detected geonames country), country displayed not phone code.

what solution?

example:

country = france telephone code = +33 in code : country = france telephone code = +93 (first country in list , not of france !!) 

  
  
    setindicatif = function(element){          var indicatif = $(element).find('option:selected').attr('indicatif') ;           $('#tel_struct').val('+('+indicatif+') ');       }      setindicatif($('#country'));        $('#countryselect').on('change', function() {          setindicatif(this);      });
  
  <!-- country ------>	      <select id="countryselect" name="country" onchange="check()">      	<?php      		$reponse = $bdd->query('select * pays');       		echo '<option value="" indicatif="">pays</option>';      		while ($donnees = $reponse->fetch(pdo::fetch_assoc))      			{       			echo '<option value="'.$donnees["id_pays"].'" indicatif="'.$donnees["code_pays"].'">'.$donnees["pays"].'</option>';      			}       	?>      </select>        <!--telephone-->      	<input type="tel" name="tel_struct" id="tel_struct" placeholder="téléphone générique">