var x;
 var zz;
 function create(){
 if (window.XMLHttpRequest){
 x = new XMLHttpRequest();
 }
 else if (window.ActiveXObject){
  try{
	   x= new  ActiveXObject("Microsoft.XMLHTTP");
	  }
	  catch(fsd){
	    try {
			x=new ActiveXObject("Msxml2.XMLHTTP");
			}catch(das){}
	  }
 }
 return x;
 }
 
 function kirim(url){
   create();
   x.open("get",url,true);
   x.onreadystatechange=update;
   x.send(null);
 }
 
 function pos(url,frm) {
    var obj=document.getElementById(frm);
    var str='';
	for (var i=0; i<obj.length-1;i++){
	if (str.length) str +='&';
	str +=obj.elements[i].name+'='+encodeURI(obj.elements[i].value);
	}  
	
	x.open("post",url,true);
    x.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");
	x.setRequestHeader("Content-length", str.length);
	x.setRequestHeader("Connection", "close");
	x.onreadystatechange=update;
	x.send(str);
 }
 
 function update(){
  if (x.readyState==4){
   document.getElementById(zz).innerHTML=x.responseText;
  }
  else{
   document.getElementById(zz).innerHTML="<img src='images/loading2.gif'/>";
  }
 }