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){
			 // for Win Mac Linux m1,f1,o8 Mac s1 Linux k3 & Win e7
			return new XMLHttpRequest() ;
		} else if(window.ActiveXObject){
			 // for Win e4,e5,e6¢D?
			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)
	{   
		
		/*
		alert(url);
		alert(callback);
		alert(data);
		*/
		/*
		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 ){
					//alert(oj.status+"--"+oj.getAllResponseHeaders());
					callback_onload(oj);
				}
			}
		}

		
		data = uriEncode(data,url)
		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 "";
				// ¢D??P=|Aencode
				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
	}