function chk() {
	if ( document.form01.areaname.value=="" || document.form01.keyword.value=="" ) {
		alert("エリア情報と、キーワード情報の両方を入力してください。");
		return false;
	} else {
		return true;
	}
}

function createMarker(lat, lon, keyword, message){
	var marker = new GMarker( new GLatLng(lat, lon) ); 
	GEvent.addListener(marker, "click", function() {
		var param  = "lat=" + encodeURIComponent(lat) + ""
			param += "&lon=" + encodeURIComponent(lon) + "";
			param += "&key=" + encodeURIComponent(keyword) + "";
		var url = "./dokuad.php?" + param + "";
		$(function (){
			var res = jQuery.get(url, function(text){
				marker.openInfoWindow(message + res.responseText);
			});
		});
	});
	return marker;
}

function clickMarker(lat, lon, keyword, url, name, add, tel){
	var mesageHTML = '<span style="font-weight:bold;"><a href="' + url + '" target="_blank">' + name + '</a></span><br />' + add + '<br />TEL:' + tel + '';
	var marker = createMarker( lat, lon, keyword, mesageHTML );
	map.addOverlay(marker);
}