function createXmlHttp(){
	if(window.XMLHttpRequest){return new XMLHttpRequest();} 
	else if(window.ActiveXObject){
		try{return new ActiveXObject("Msxml2.XMLHTTP");}
		catch(e){return new ActiveXObject("Microsoft.XMLHTTP");}
	}
	else{return "";}
}
function ecgoAjax(file,dat){
	var xmlhttp = createXmlHttp();
	var que = dat;
	xmlhttp.open("POST", file, true);
	xmlhttp.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");
	xmlhttp.onreadystatechange = function(){
		if(xmlhttp.readyState == 4){
			if(xmlhttp.status == 200){
				var res = decodeURIComponent(xmlhttp.responseText);
				resFlg(res);
				xmlhttp.abort();
			}
		}
	}
	xmlhttp.send(que);
}
function resFlg(res){
	var flg = res.substr(0,4);
	if(flg=='onl:'){online(res.substr(4,res.length));}
	else if(flg=='cal:'){document.getElementById('ecgocal').innerHTML = res.substr(4,res.length);}
}