// JavaScript Document
var xmlHttp

function changePage(str)
{ 
	xmlHttp=GetXmlHttpObject();
	if (xmlHttp==null)
	{
	  alert ("Your browser does not support AJAX!");
	  return;
	} 
	var url="getpage.php";
	url=url+"?q="+str;
	xmlHttp.onreadystatechange=stateChanged;
	xmlHttp.open("GET",url,true);
	xmlHttp.send(null);
	//document.getElementById("nav" + str).innerHTML = document.getElementById("nav" + str).innerHTML + ">";
}

function stateChanged() 
{ 
	//document.getElementById("test").innerHTML=document.getElementById("test").innerHTML + xmlHttp.readyState;
	if (xmlHttp.readyState==1)
	{
		document.getElementById("main").innerHTML="<div class='boxed center'> -- Getting new page data -- </div>";
	}
	if (xmlHttp.readyState==4)
	{ 
		document.getElementById("main").innerHTML=xmlHttp.responseText;
	}
}

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;
}