// HTTP通信用、共通関数
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;
}

// document.getElementById
function $(tagId)
{
	return document.getElementById(tagId);
}


function loadDiary(fName)
{
	diaryObj = createXMLHttpRequest(displayData);
	if (diaryObj){
		diaryObj.open("GET",fName,true);
		diaryObj.send(null);
	}
}
function displayData()
{
	if ((diaryObj.readyState == 4) && (diaryObj.status == 200)){
		parseJSON(diaryObj.responseText);
	}
}
// JSONのデータを解析して表示
function parseJSON(jsData)
{
	var data = eval("("+jsData+")");
	
	$("diary_photo").innerHTML = "<img alt=\"" + data.photo + "\" src=\"diary/" + data.photo + "\" style=\"width:100%; height:100%;\"/>";
	$("diary_title").innerHTML = data.title;
	$("diary_body").innerHTML  = data.diary;
	$("diary_date").innerHTML  = data.datetime;
}