function get_zones(country_select,zone_id,zone_name_id)
{
	country = country_select.options[country_select.selectedIndex].value;
	var myAjax = new Ajax.Request('async/get_zones.php',
	  {
		method:'get',
 	   parameters: {country_iso: country},
		onSuccess: function(transport){
   		 var result = transport.responseText.evalJSON(true);
		  if (result.success) {
				 $(zone_name_id).innerHTML = result.zone_display_name;
			  $(zone_id).innerHTML = result.zone_select;
			} else {
				$(zone_name_id).innerHTML = '';
			  $(zone_id).innerHTML = '';
			}
					
		},
		onFailure: function(){ alert('Communication error...') }
	  });
	
}