// JavaScript Document

function change_area(area_id) {
	init_ajax();
	var dd = new Date();
	ajax.open("GET", "/top_area/" + area_id + ".cfm?dummy="+dd, false);
	ajax.send("");
	document.getElementById("area_map").innerHTML = ajax.responseText;
}

function init_ajax() {
	ajax = false;
	// IE以外
	if(window.XMLHttpRequest) {
		ajax = new XMLHttpRequest();
	// IE用
	} else if(window.ActiveXObject) {
		try {
			ajax = new ActiveXObject("Msxml2.XMLHTTP");
		} catch(e) {
			ajax = new ActiveXObject("Microsoft.XMLHTTP");
		}
	}
}

if (window.addEventListener) { //for W3C DOM
		window.addEventListener("load", init_load, false);
} else if (window.attachEvent) { //for IE
		window.attachEvent("onload", init_load);
} else {
		window.onload = init_load;
}
function init_load() {
}