var http = false;
if(navigator.appName == "Microsoft Internet Explorer")
    {
	http = new ActiveXObject("Microsoft.XMLHTTP");
	}else
	{
	http = new XMLHttpRequest();
    }
function s(u/*url or data*/,m/*methode*/,i/*id*/,f/*file*/,r/*refresh?*/)
    {
	i= i || 'center_of_page';
	m= m || 'GET';
	f= f || 'index.php?hf=1';
	r= r || 1;
	document.getElementById('top_page').focus();
	document.body.style.display='none';
	document.getElementById(i).innerHTML = '<center><b>Wait To load ...</b></center>';
    http.abort();
	if(r==1) f+='&rrrraaannd='+Math.random();
	if(m=='POST' || m=='post')
	   {
	   for(x in u)
	      {
	      f+='&'+x+'='+u[x];
	      }
	   }else f+=u;
	http.open(m, f, true);
    http.onreadystatechange=function()
	    {
		if(http.readyState == 4)
	       {
		   document.getElementById(i).innerHTML = http.responseText;
		   document.body.style.display='block';
		   return false;
		   }else return true;
        }
      http.send(null);
	return false;
	}