// JavaScript Document
var nhwXmlhttp

function neighbourhoodwatch(strLetters)
{ 
nhwXmlhttp=GetXmlHttpObject();
if (nhwXmlhttp==null)
  {
  alert ("Your browser does not support AJAX!");
  return;
  }
//add count that only looks up letters if number of letters is greater than 2
var url="neighbourhoodwatch_lookup.asp?area=" + strLetters + "&sid=" + Math.random();
		  nhwXmlhttp.onreadystatechange=stateChanged;
		  nhwXmlhttp.open("GET",url,true);
		  nhwXmlhttp.send(null);
}

function stateChanged() 
{ 
	if (nhwXmlhttp.readyState==4)
	{ 
	document.getElementById("txtArea").innerHTML=nhwXmlhttp.responseText;
	}
}

function GetXmlHttpObject()
{
var nhwXmlhttp=null;
try
  {
  // Firefox, Opera 8.0+, Safari
  nhwXmlhttp=new XMLHttpRequest();
  }
catch (e)
  {
  // Internet Explorer
  try
    {
    nhwXmlhttp=new ActiveXObject("Msxml2.XMLHTTP");
    }
  catch (e)
    {
    nhwXmlhttp=new ActiveXObject("Microsoft.XMLHTTP");
    }
  }
return nhwXmlhttp;
}