function lastbooks(when)
{

  var page=document.getElementById("page").value;
  page=parseInt(page);
  if (when=='older'){document.getElementById("page").value=page+1;page=page+1;}
  if (when=='newer'){document.getElementById("page").value=page-1;page=page-1;}
  if (page<1){document.getElementById("page").value=1;page=1;}
  
  
  
  
  
	if (window.XMLHttpRequest)
	  {// code for IE7+, Firefox, Chrome, Opera, Safari
	  xmlhttp=new XMLHttpRequest();
	  }
	else
	  {// code for IE6, IE5
	  xmlhttp=new ActiveXObject("Microsoft.XMLHTTP");
	  }
	
	xmlhttp.onreadystatechange=function()
  {
      if(xmlhttp.readyState != 4)
    {
        document.getElementById("waitlastbooks").style.display='inline';
     	document.getElementById("lastbooks").style.display='none';
    }
    
    
 	 if (xmlhttp.readyState==4 && xmlhttp.status==200)
	    {
	    document.getElementById("waitlastbooks").style.display='none';
	    document.getElementById("lastbooks").style.display='inline';
	    document.getElementById("lastbooks").innerHTML=xmlhttp.responseText;
	    }
  }
	var url='lastbooks-ajax.asp?rnd='+ new Date().getTime();
	xmlhttp.open("post",url,true);
	xmlhttp.setRequestHeader("Content-type", "application/x-www-form-urlencoded; charset=UTF-8");
	xmlhttp.send('page='+page);
}