var xmlhttp

function select_page(link2)
{ 

xmlhttp=GetXmlHttpObject();
if (xmlhttp==null)
  {
  alert ("Your browser does not support AJAX!");
  return;
  }        
var url="query.asp";
url=url+"?page="+link2;
xmlhttp.onreadystatechange=stateChanged;
xmlhttp.open("POST",url,true);
xmlhttp.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
xmlhttp.send(null);
}

function stateChanged() 
{ 
if (xmlhttp.readyState ==1){
			document.getElementById('loader').innerHTML='<img src="images/loading.gif">';
		
          }

if (xmlhttp.readyState==4)
   { 
   document.getElementById('loader').innerHTML='';
   document.getElementById('ajax').innerHTML=xmlhttp.responseText;
   }
}

function GetXmlHttpObject()
{
if (window.XMLHttpRequest)
  {
  // code for IE7+, Firefox, Chrome, Opera, Safari
  return new XMLHttpRequest();
  }
if (window.ActiveXObject)
  {
  // code for IE6, IE5
  return new ActiveXObject("Microsoft.XMLHTTP");
  }
return null;
}

select_image