var httpRequest = false;
if(window.XMLHttpRequest) {
	// Firefox, Opera など
	httpRequest = new XMLHttpRequest();
	//httpRequest.overrideMimeType('text/xml');
} else if(window.ActiveXObject) {
	// IE
	try {
		httpRequest = new ActiveXObject('Msxml2.XMLHTTP');
	} catch (e) {
		httpRequest = new ActiveXObject('Microsoft.XMLHTTP');
	}
}

httpRequest.open('GET', 'http://www.meisei-kogyo.com/wp/?page_id=2', true);
httpRequest.onreadystatechange = function() {
	if(httpRequest.readyState == 4 && httpRequest.status == 200) {
		var info = document.getElementById('info');
		info.innerHTML = info.innerHTML +  httpRequest.responseText;
	}
}
httpRequest.send(null);