var ajaxRequest = getXMLHttpRequest();
var output = new Array();
var error;
var containsError = false;
var database="B"; //default to UK

function getNewValues(thePlace) {

  output.length = 0;
  params = "place="+escape(thePlace)+"&database="+database;

  var ie7 = (document.all && !window.opera && window.XMLHttpRequest) ? true : false;
  if (ajaxRequest!=null){
	ajaxRequest.open("POST", "/aaservlet/PopulateGazList", false);
	ajaxRequest.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
	ajaxRequest.setRequestHeader("Content-length", params.length);
	ajaxRequest.setRequestHeader("Connection", "close");
	if (window.XMLHttpRequest){
	   if(ie7)
	   {
		  ajaxRequest.onreadystatechange= function(){updateValues();};
		  ajaxRequest.send(params);
	   }
	   else
	   {
		  ajaxRequest.send(params);
		  ajaxRequest.onreadystatechange= updateValues();
	   }
	} else {
	   ajaxRequest.onreadystatechange= function(){updateValues();};
	   ajaxRequest.send(params);
	}
 }

//		 	ajaxRequest.open('GET', "/aaservlet/PopulateGazList?"+params);
//			ajaxRequest.onreadystatechange = updateValues;
//			ajaxRequest.send(null);

}

function updateValues() {
		containsError = false;
		error="";
		if (ajaxRequest!=null && ajaxRequest.readyState==4 && ajaxRequest.status == 200){
			var result = eval("("+ajaxRequest.responseText+")");
			if(result.errors.length > 0)
			{
				error = result.errors;
				containsError = true;
			}
			else
			{
				for (i=0; i < result.placeResults.length; i++)
				{
					var entry = new Array();
					//each entry as a display and value
					entry[0] = result.placeResults[i][0];
					entry[1] = result.placeResults[i][1];
					output[i] = entry;
				}
			}
		}
}

function setDatabase(db){ database=db; }
function getDatabase(){ return database }
function getResults(){ return output; }
function hasError(){
	return containsError;
}

function getError(){return error;}