// JavaScript Document
function loadAge(){

var req = null;
	if(window.XMLHttpRequest) {
	   req = new XMLHttpRequest(); // Mozilla, Firefox, Safari, IE7
	} else if(window.ActiveXObject) {	// IE5, IE6
	   try {
	       req = new ActiveXObject("Msxml2.XMLHTTP");	// MSXML3
	   } catch(e) {
	       req = new ActiveXObject("Microsoft.XMLHTTP");	// MSXML2まで
	   }
	}
var since_val = document.getElementById('since').value;
var month_val = document.getElementById('month').value;
var day_val = document.getElementById('day').value;
	
req.open("GET","../Ajax/since_class.php?since=" + since_val + "&month=" + month_val + "&day=" + day_val, true);

// 通信状態が変化した時に発生するイベントを定義
	req.onreadystatechange = function() {
		    if (req.readyState == 4 
		    		&& req.status == 200) {

// ID属性が「age」のタグにレスポンスデータをセット
//document.getElementById('age').innerHTML = req.responseText;
document.getElementById('age').value = req.responseText;
		    }
		}
		
	// サーバにリクエストを送信
	req.send("");
}