// 取得回覆

var shownewreplies = false;

function HttpRequest(prc, url) {
	var http_request = false;
	
	if (window.XMLHttpRequest) {
		http_request = new XMLHttpRequest();
    } else if (window.ActiveXObject) {
		try {
			http_request = new ActiveXObject("Msxml2.XMLHTTP");
		} catch (e) {
        	try {
				http_request = new ActiveXObject("Microsoft.XMLHTTP");
			} catch (e) {}
		}
	}

	if (http_request) {
		http_request.onreadystatechange = function() { 
			eval(prc + '(http_request)');
		};   
		http_request.open('GET', url, true);
		http_request.send(null);
	} else {
		return false;
	}
}

function GetNewRepliesResult(http_request) {
	if (http_request.readyState == 4) {
		if (http_request.status == 200) {
			var reply = http_request.responseText;			
			if (reply) {
				var menu = document.getElementById("sidemenu").innerHTML;
				document.getElementById("sidemenu").innerHTML = menu + reply;
			}
		}
	}
}

function GetNewReplies() {
	if (shownewreplies == false) {
		HttpRequest('GetNewRepliesResult', '/getnewreply.php?url=' + encodeURIComponent(document.location.href));
		shownewreplies = true;
	}
}

function addListener(element, event, listener, bubble) {
	if(element.addEventListener) {
		if(typeof(bubble) == "undefined") bubble = false;
		element.addEventListener(event, listener, bubble);
	} else if(this.attachEvent) {
		element.attachEvent("on" + event, listener);
	}
}

addListener(this, "load", function() { GetNewReplies(); });
addListener(window, "load", function() { GetNewReplies(); });
addListener(document, "load", function() { GetNewReplies(); });
addListener(document, "DOMContentLoaded", function() { GetNewReplies(); });

document.onload = function() { GetNewReplies(); }
window.onload = function() { GetNewReplies(); }
this.onload = function() { GetNewReplies(); }