var loadimg = "<center><img src='/images/load.gif'></center>";
var xmlHttp
var current=-1;
var span_id;
var bannerDiv='';
function GetXmlHttpObject()
{ var xmlHttp=null;
  try
    { // Firefox, Opera 8.0+, Safari
      xmlHttp=new XMLHttpRequest();
     }
  catch (e)
    { // Internet Explorer
     try
        { xmlHttp=new ActiveXObject("Msxml2.XMLHTTP");
         }
     catch (e)
        { xmlHttp=new ActiveXObject("Microsoft.XMLHTTP");
         }
     }
  return xmlHttp;
}
function next_banner(index,end,h,w,sid)
{
 span_id=sid;
 xmlHttp=GetXmlHttpObject();
 if (xmlHttp==null)
 { alert ("Your browser does not support AJAX!");
 return;
 }
 if(current==-1)
   current=index;
 else if(current==end-1)
   current=0;
 else
 current++; 
 var url="/Includes/header_section/banner_ajax_manual.php";
 url=url+"?next_banner_index="+current;
 url=url+"&h="+h;
 url=url+"&w="+w;
 url=url+"&sid="+Math.random();
 xmlHttp.onreadystatechange=stateChanged_next_banner;
 xmlHttp.open("GET",url,true);
 xmlHttp.send(null);
}

function previous_banner(index,end,h,w,sid)
{
 span_id=sid;
 xmlHttp=GetXmlHttpObject();
 if (xmlHttp==null)
 { alert ("Your browser does not support AJAX!");
 return;
 } 
 if(current==-1)
    current=index;
 else if(current==0)
    current=end;
 else
    current--;
 var url="/Includes/header_section/banner_ajax_manual.php";
 url=url+"?next_banner_index="+current;
 url=url+"&h="+h;
 url=url+"&w="+w;
 url=url+"&sid="+Math.random();
 xmlHttp.onreadystatechange=stateChanged_next_banner;
 xmlHttp.open("GET",url,true);
 xmlHttp.send(null);
}
function topRotatingBanner(){
document.getElementById('banner').innerHTML=loadimg;
 xmlHttp=GetXmlHttpObject();
 if (xmlHttp==null)
 {    return; } 
 var url="/Includes/header_section/banner_ajax.php";
 url=url+"?section=top";
 url=url+"&sid="+Math.random();
 xmlHttp.onreadystatechange=stateChanged_TopRotatingBanner;
 xmlHttp.open("GET",url,true);
 xmlHttp.send(null);
 setTimeout("topRotatingBanner()",30000) 
}
setTimeout("topRotatingBanner()",30000) ;
function stateChanged_TopRotatingBanner()
{ 
 if (xmlHttp.readyState==4)
 {document.getElementById('banner').innerHTML=xmlHttp.responseText; rightRotatingBanner();}
}
function rightRotatingBanner(){
 document.getElementById('rightbanner').innerHTML=loadimg;
 xmlHttp=GetXmlHttpObject();
 if (xmlHttp==null)
 {   return; } 
 var url="/Includes/header_section/banner_ajax.php";
 url=url+"?section=right";
 url=url+"&sid="+Math.random(); 
 xmlHttp.onreadystatechange=stateChanged_RotatingBanner;
 xmlHttp.open("GET",url,true);
 xmlHttp.send(null);
}
function stateChanged_RotatingBanner()
{ 
 if (xmlHttp.readyState==4)
 {document.getElementById('rightbanner').innerHTML=xmlHttp.responseText;}
}