//Browser Check
    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)
    }
    

    // XMLHttpRequest
    function createHttpRequest()
    {
        if(window.ActiveXObject){
             //Win e4,e5,e6
            try {
                return new ActiveXObject("Msxml2.XMLHTTP") ;
            } catch (e) {
                try {
                    return new ActiveXObject("Microsoft.XMLHTTP") ;
                } catch (e2) {
                    return null ;
                 }
             }
        } else if(window.XMLHttpRequest){
             //Win Mac Linux m1,f1,o8 Mac s1 Linux k3
            return new XMLHttpRequest() ;
        } else {
            return null ;
        }
    }
    

    // @sample         sendRequest(onloaded,'&prog=1','POST','./about2.php',true,true)
    function sendRequest(callback,data,method,url,async,sload,user,password)
    {
        //XMLHttpRequest
        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(opera || safari || mozes){
            oj.onload = function () { callback(oj); }
        } else {
        
            oj.onreadystatechange =function () 
            {
                if ( oj.readyState == 4 ){
                    callback(oj);
                }
            }
        }

        //URL Incoding
        data = uriEncode(data)
        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('=');
                    encdata += '&'+encodeURIComponent(dataq[0])+'='+encodeURIComponent(dataq[1]);
                }
            } else {
                encdata = "";
            }
            return encdata;
        }


        return oj
    }