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.ActiveXObject)
    	{
			try
			{
            	return new ActiveXObject("Msxml2.XMLHTTP");
			}
			catch(e)
			{
				try
				{
                	return new ActiveXObject("Microsoft.XMLHTTP");
				}
				catch(e2)
				{
                	return null;
				}
			}
    	}
    	else if (window.XMLHttpRequest)
    	{
			return new XMLHttpRequest();
    	}
    	else
    	{
        	return null;
    	}
	}


	function sendRequest(callback, data, method, url, async, sload, user, password)
	{
		var oj = createHttpRequest();
		if (oj == null) return null;

		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 (opera || safari || mozes)
		{
        	oj.onload = function()
        	{
            	callback(oj);
        	}
		}
		else
		{
			oj.onreadystatechange = function()
			{
            	if (oj.readyState == 4)
            	{
                	callback(oj);
            	}
			}
		}

		if (method.toUpperCase() == 'GET')
		{
        	url += data;
		}

		oj.open(method, url, async, user, password);
		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)
		{
        	if (data != "")
        	{
				var encdata = '';
				var datas = data.split('&');
				for (i = 1; i < datas.length; i++)
				{
                	var dataq = datas[i].split('=');
				}
        	}
        	else
        	{
            	encdata = "";
        	}

        	return encdata;
		}

		return oj;
	}