// send request
  $(document).ready(function(){
	  $("#pcountry").change(function () {
	  var CunCode=$("#pcountry option:selected").val();
	  var Action='GetCountryTel';
	  $.getJSON("ajax.php",{Action:Action, CunCode:CunCode}, function(json){
		  if(json.tel_code!=undefined) $("#parea").attr("value",json.tel_code);
		 });		  
        })
        .change();  
  });