var idlist = [];
var datalist = {};

if (callback) {
	var callback;
}

$(function(){
	$.ajax({
		url: 'json.php?area=1',
		type: 'get',
		dataType: 'json',
		success: function(data){
			$(data).each(function(){
				lat = parseDouble(this.latitude);
				lng = parseDouble(this.longitude);
				if (!isNaN(lat) && !isNaN(lng)) {
					this.latitude = lat;
					this.longitude = lng;
					idlist.push(this.id);
					datalist[this.id] = this;

				}
			});
			if (is("Function", callback)) {
				callback();
			}
		},
		error: function(XMLHttpRequest, textStatus, errorThrown, data) {
			 //エラーメッセージの表示
			 //alert('getJsonError : ' + XMLHttpRequest + ":" + textStatus + ":" +  errorThrown);
		}
	});
});

function parseDouble(value){
	if (typeof value == "string" && value.length) {
		var ary = value.match(/^-?\d+\.?\d*/);
		if (ary && ary.length) {
			value = ary[0];
		}
	}
	return !isNaN(parseInt(value)) ? value * 1 : NaN;
}

function is(type, obj) {
	var className = Object.prototype.toString.call(obj).slice(8, -1);
	return obj !== undefined && obj !== null && className === type;
}