window.onload = init;
var xmlhttp;


function init() {
	showUser("+");	
}

function showUser(mathsim)
{	

var ltext = eval(document.getElementById("ltextfield").value);
if(ltext == "0" && document.getElementById("tdata").value == document.getElementById("rtextfield").value){
	var tdata1 = eval(document.getElementById("tdata").value);
	var tdata = eval(tdata1 + 1);
}
else {
	var tdata = eval(document.getElementById("tdata").value);	
}

if((document.getElementById("ltextfield").value != document.getElementById("rtextfield").value && mathsim != "-") || (document.getElementById("ltextfield").value != "1" && mathsim != "+") || mathsim == "freshopen") {
	
	if(mathsim == "+"){
		document.getElementById("ltextfield").value = eval(ltext + 1);
		document.getElementById("tdata").value = eval(tdata - 1);
	}
	if(mathsim == "-"){
		document.getElementById("ltextfield").value = eval(ltext - 1);
		document.getElementById("tdata").value = eval(tdata + 1);
	}	 
	
	valurl = "archives_content.php?startnum=" + document.getElementById("tdata").value	
	
	xmlhttp=GetXmlHttpObject();
	if (xmlhttp==null)
	  {
	  alert ("Browser does not support HTTP Request");
	  return;
	  }
	var url=valurl;
	xmlhttp.onreadystatechange=stateChanged;
	xmlhttp.open("GET",url,true);
	xmlhttp.send(null);	
}


}

function stateChanged()
{
if (xmlhttp.readyState==4)
{
document.getElementById("txtHint").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;
}