var xmlhttp;

        if (window.XMLHttpRequest) { // Mozilla, Safari, ...
         try{
             xmlhttp = new XMLHttpRequest();
            
            if ( xmlhttp.overrideMimeType) {
                 xmlhttp.overrideMimeType('text/xml');
                // See note below about this line
            }
            }catch(e){}
        } 
        else if (window.ActiveXObject) { // IE
            try {
                 xmlhttp = new ActiveXObject("Msxml2.XMLHTTP");
                
                } 
                catch (e) {
                           try {
                                 xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");
                                
                               }catch (e) {}
                          }
          }
        if (!xmlhttp) {
            alert('Cannot create an XMLHTTP instance');
            xmlhttp=true;
        }
var wait="Please wait...";
function advanceActionPage(url, targetId) {
  if(!xmlhttp)return false;
    var e=document.getElementById(targetId);if(!e)return false;
    if(wait) e.innerHTML = wait;
    //alert(e.toString());
    //url=url+"?loc="+loc;
    //alert(url);
    xmlhttp.open("GET", url, true);
    xmlhttp.onreadystatechange = function() { response(url, e); }
    try{
      xmlhttp.send(null);
    }catch(l){
    while(e.firstChild)e.removeChild(e.firstChild);//e.innerHTML="" the standard way
    e.appendChild(document.createTextNode("request failed"));
    
  }
}

function response(url, e) {
  if(xmlhttp.readyState != 4)return;
    var tmp= (xmlhttp.status == 200 || xmlhttp.status == 0) ? xmlhttp.responseText :">>>Không t́m thấy";
   
    var d=document.createElement("div");
   
   //if (tmp=="error" || tmp=='') tmp="<table><tr><td>Không t́m th&#7845;y</td></tr></table>";
  
    d.innerHTML=tmp;
 
    //d.innerHTML="hjh" ;
    setTimeout(function(){
     while(e.firstChild) e.removeChild(e.firstChild);//e.innerHTML="" the standard way     
      
      e.appendChild(d); 

    },10);
     

}

function commentCulture(url) {
  if(!xmlhttp)return false;
    //alert(e.toString());
    //url=url+"?loc="+loc;
    //alert(url);
    xmlhttp.open("GET", url, true);
    //xmlhttp.onreadystatechange = function() { }
    try{
      xmlhttp.send(null);
     
    }catch(l){   
      }
}