function chkAjaBrowser()
{
	var a,ua=navigator.userAgent;
	this.bw={safari:((a=ua.split('AppleWebKit/')[1])?a.split('(')[0]:0)>=124,konqueror:((a=ua.split('Konqueror/')[1])?a.split(';')[0]:0)>=3.3,mozes:((a=ua.split('Gecko/')[1])?a.split(" ")[0]:0)>=20011128,opera:(!!window.opera)&&((typeof XMLHttpRequest)=='function'),msie:(!!window.ActiveXObject)?(!!createHttpRequest()):false};
	return(this.bw.safari||this.bw.konqueror||this.bw.mozes||this.bw.opera||this.bw.msie)
};
function createHttpRequest()
{
	if(window.XMLHttpRequest)
	{
		return new XMLHttpRequest();
	}
	else if(window.ActiveXObject)
	{
		try
		{
			return new ActiveXObject("Msxml2.XMLHTTP");
		}
		catch(e)
		{
			try
			{
				return new ActiveXObject("Microsoft.XMLHTTP");
			}
			catch(e2)
			{
				return null;
			}
		}
	}
	else
	{
		return null;
	}
};
function sendRequest(callback,data,method,url,async,sload,user,password)
{
	sendRequest.prototype.README={url:"http://jsgt.org/mt/archives/01/000409.html",name:"sendRequest",version:0.50,license:"Public Domain",author:"Toshiro Takahashi http://jsgt.org/mt/01/",memo:""};
	var oj=createHttpRequest();
	if(oj==null)return null;
	var sload=(!!sendRequest.arguments[5])?sload:false;
	if(sload||method.toUpperCase()=='GET')url+="?";
	if(sload)url=url+"t="+(new Date()).getTime();
	var bwoj=new chkAjaBrowser();
	var opera=bwoj.bw.opera;
	var safari=bwoj.bw.safari;
	var konqueror=bwoj.bw.konqueror;
	var mozes=bwoj.bw.mozes;
	if(typeof callback=='object')
	{
		var callback_onload=callback.onload;
		var callback_onbeforsetheader=callback.onbeforsetheader
	}
	else
	{
		var callback_onload=callback;
		var callback_onbeforsetheader=null;
	};
	if(opera||safari||mozes)
	{
		oj.onload=function(){callback_onload(oj);}
	}
	else
	{
		oj.onreadystatechange=function(){if(oj.readyState==4){callback_onload(oj);}}
	};
	if(method.toUpperCase()=='GET')
	{
		url+=data
	};
	oj.open(method,url,async,user,password);
	if(!!callback_onbeforsetheader)callback_onbeforsetheader(oj);
	setEncHeader(oj);
	oj.send(data);
	function setEncHeader(oj)
	{
		var contentTypeUrlenc='application/x-www-form-urlencoded; charset=UTF-8';
		if(!window.opera)
		{
			oj.setRequestHeader('Content-Type',contentTypeUrlenc);
		}
		else
		{
			if((typeof oj.setRequestHeader)=='function')oj.setRequestHeader('Content-Type',contentTypeUrlenc);
		};
		return oj
	};
	function uriEncode(data,url)
	{
		var encdata=(url.indexOf('?')==-1)?'?dmy':'';
		if(typeof data=='object')
		{
			for(var i in data)encdata+='&'+encodeURIComponent(i)+'='+encodeURIComponent(data[i]);
		}
		else if(typeof data=='string')
		{
			if(data=="")return"";
			var encdata='';
			var datas=data.split('&');
			for(i=1;i<datas.length;i++)
			{
				var dataq=datas[i].split('=');
				encdata+='&'+encodeURIComponent(dataq[0])+'='+encodeURIComponent(dataq[1]);
			}
		};
		return encdata;
	};
	return oj;
}