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){
    //Win e4,e5,e6용
   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 k3용
   return new XMLHttpRequest() ;
  } else {
   return null ;
  }
 }
 
 function sendRequest(callback,data,method,url,async,sload,user,password)
 {
  //XMLHttpRequest 오브젝트 생성
  var oj = createHttpRequest();
  if( oj == null ) return null;
  
  //강제 로드의 설정
  var sload = (!!sendRequest.arguments[5])?sload:false;
  if(sload || method.toUpperCase() == 'GET')url += "?";
  if(sload)url=url+"t="+(new Date()).getTime();
  
  //브라우저 판정
  var bwoj = new chkAjaBrowser();
  var opera   = bwoj.bw.opera;
  var safari   = bwoj.bw.safari;
  var konqueror = bwoj.bw.konqueror;
  var mozes   = bwoj.bw.mozes ;

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

  //URL 인코딩
  data = uriEncode(data)
  if(method.toUpperCase() == 'GET') {
   url += data
  }
  
  //open 메소드
  oj.open(method,url,async,user,password);

  //헤더 application/x-www-form-urlencoded 설정
  setEncHeader(oj)

  //디버그
  //alert("////jslb_ajaxxx.js//// \n data:"+data+" \n method:"+method+" \n url:"+url+" \n async:"+async);
  
  //send 메소드
  oj.send(data);

  //URI 인코딩 헤더 설정
  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
  }

  //URL 인코딩
  function uriEncode(data){

   if(data!=""){
    //&와=로 일단 분해해서 encode
    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
 }