GeoNames Forum

I have been searching through the forums and haven't been able to find anything that has helped me with my dilema.

I am attempting to make an autocomplete menu for city names/airport codes that duplicated the functionality of the autocomplete on this form http://laosparadisetravel.turbott.com/IndexVT.aspx I am using the jQeury UI autocomplete widget and started with a duplicate of their query of geonames. The test page I am working on is at http://laosparadisetravel.com/test/test4.php and the code is:

Code:

 $(function() {
 		$( "#gsorigin" ).autocomplete({
 			source: function( request, response ) {
 				$.ajax({
 					url: "http://ws.geonames.org/searchJSON",
 					dataType: "jsonp",
 					data: {
 						featureClass: "P",
 						//fcode: "AIRP",
 						style: "full",
 						maxRows: 12,
 						name_startsWith: request.term
 					},
 					success: function( data ) {
 						response( $.map( data.geonames, function( item ) {
 							return {
 								label: item.name + (item.alternateName ? ", " + item.alternateName : "") + ", " + item.countryName,
 								value: item.name
 							}
 						}));
 					}
 				});
 			},
 			minLength: 2,
 			open: function() {
 				$( this ).removeClass( "ui-corner-all" ).addClass( "ui-corner-top" );
 			},
 			close: function() {
 				$( this ).removeClass( "ui-corner-top" ).addClass( "ui-corner-all" );
 			}
 		});
 	});

If I use featureClass P the results are way to broad, including non-airport related locations. If I use use S and fcode AIRP I don't get city names. I know I don't know the full structure of the geonames data so I expect I am missing data somewhere. Any suggestions on how to get both city names AND airport codes?

Also, I understand from reading the forum that the free web service is strained. An autocomplete ajax function is going to call the web service several times per form submission so I expect it would be best if I just downloaded the data and ran it off our servers. Is there a way to just download the relevant city/airport data without having to get the whole geonames db?