// アドレス送信Ajax
// Ajaxコールバック起動
httpObj = createXMLHttpRequest(displayData);
if (httpObj) {
	httpObj.open("GET", "rss.php", true);
	httpObj.send(null);
}

// HTTP通信用、共通関数
function displayData() {
	if ((httpObj.readyState == 4) && (httpObj.status == 200)) {
		document.getElementById("blogdata").innerHTML = httpObj.responseText;
	}
}
// AJAX用ライブラリ
function createXMLHttpRequest(cbFunc) {
	var XMLhttpObject = null;
	try{
		XMLhttpObject = new XMLHttpRequest();
	}catch(e){
		try{
			XMLhttpObject = new ActiveXObject("Msxml2.XMLHTTP");
		}catch(e){
			try{
				XMLhttpObject = new ActiveXObject("Microsoft.XMLHTTP");
			}catch(e){
				return null;
			}
		}
	}
	if (XMLhttpObject) XMLhttpObject.onreadystatechange = cbFunc;
	return XMLhttpObject;
}