var xmlHttp
<!---------Poll ------>
function poll(file)
{ 
var url=""+file+"";
xmlHttp=GetXmlHttpObject(stateChangedpoll)
xmlHttp.open("GET", url , true)
xmlHttp.send(null)
} 

function stateChangedpoll() 
{ 
if (xmlHttp.readyState==1 || xmlHttp.readyState==2)
{ 
document.getElementById("poll").innerHTML='<center>Đang Bình Chọn !<br><br><img src="img/wait.gif" boder=0 width="40" height="40"></center>   ';

} 

  else  if (xmlHttp.readyState==4 || xmlHttp.readyState=="200")
{ 
document.getElementById("poll").innerHTML=xmlHttp.responseText 
}
}
<!---------Show Media - Game ------>
function showmg(file)
{ 
var url=""+file+"";
xmlHttp=GetXmlHttpObject(stateChanged)
xmlHttp.open("GET", url , true)
xmlHttp.send(null)
} 

function stateChanged() 
{ 
if (xmlHttp.readyState==1 || xmlHttp.readyState==2)
{ 
document.getElementById("showmg").innerHTML='<center>Đang Tải Dữ Liệu !<br><br><img src="img/wait.gif" boder=0 width="40" height="40"></center>   ';

} 

  else  if (xmlHttp.readyState==4 || xmlHttp.readyState=="200")
{ 
document.getElementById("showmg").innerHTML=xmlHttp.responseText 
}
}
<!---------Thank Bai Viet ------>
function thankbv(file)
{ 
var url=""+file+"";
xmlHttp=GetXmlHttpObject(stateChangedthankbv)
xmlHttp.open("GET", url , true)
xmlHttp.send(null)
} 

function stateChangedthankbv() 
{ 
if (xmlHttp.readyState==1 || xmlHttp.readyState==2)
{ 
document.getElementById("thankbv").innerHTML='<center><img src="img/loading.gif" boder=0>Cảm Ơn !</center>   ';

} 

  else  if (xmlHttp.readyState==4 || xmlHttp.readyState=="200")
{ 
document.getElementById("thankbv").innerHTML=xmlHttp.responseText 
}
}
<!---------Show News ------>
function shownews(file)
{ 
var url=""+file+"";
xmlHttp=GetXmlHttpObject(stateChangedshownews)
xmlHttp.open("GET", url , true)
xmlHttp.send(null)
} 

function stateChangedshownews() 
{ 
if (xmlHttp.readyState==1 || xmlHttp.readyState==2)
{ 
document.getElementById("shownews").innerHTML='<center>Đang Xem Tin Tức !<br><br><img src="img/wait.gif" boder=0 width="40" height="40"></center>   ';

} 

  else  if (xmlHttp.readyState==4 || xmlHttp.readyState=="200")
{ 
document.getElementById("shownews").innerHTML=xmlHttp.responseText 
}
}
<!---------Load List News ------>
function listnews(file)
{ 
var url=""+file+"";
xmlHttp=GetXmlHttpObject(stateChangedlistnews)
xmlHttp.open("GET", url , true)
xmlHttp.send(null)
} 

function stateChangedlistnews() 
{ 
if (xmlHttp.readyState==1 || xmlHttp.readyState==2)
{ 
document.getElementById("listnews").innerHTML='<center>Đang Tải !<br><br><img src="img/wait.gif" boder=0 width="40" height="40"></center>   ';

} 

  else  if (xmlHttp.readyState==4 || xmlHttp.readyState=="200")
{ 
document.getElementById("listnews").innerHTML=xmlHttp.responseText 
}
}
function GetXmlHttpObject(handler)
{ 
var objXmlHttp=null

if (navigator.userAgent.indexOf("Opera")>=0)
{
alert("This example doesn't work in Opera") 
return 
}
if (navigator.userAgent.indexOf("MSIE")>=0)
{ 
var strName="Msxml2.XMLHTTP"
if (navigator.appVersion.indexOf("MSIE 5.5")>=0)
{
strName="Microsoft.XMLHTTP"
} 
try
{ 
objXmlHttp=new ActiveXObject(strName)
objXmlHttp.onreadystatechange=handler 
return objXmlHttp
} 
catch(e)
{ 
alert("Error. Scripting for ActiveX might be disabled") 
return 
} 
} 
if (navigator.userAgent.indexOf("Mozilla")>=0)
{
objXmlHttp=new XMLHttpRequest()
objXmlHttp.onload=handler
objXmlHttp.onerror=handler 
return objXmlHttp
}
}