// JavaScript Document
var READY_STATE_UNINITIALIZED=0;
var READY_STATE_LOADING=1;
var READY_STATE_LOADED=2;
var READY_STATE_INTERACTIVE=3;
var READY_STATE_COMPLETE=4;
var url= "ajax.php";
var req;
var layer1 ="";
function getXMLHTTPRequest() {
	var xRequest=null;
		if (window.XMLHttpRequest) {
			xRequest=new XMLHttpRequest();
		}else if (typeof ActiveXObject != "undefined")
			{
				xRequest=new ActiveXObject("Microsoft.XMLHTTP");
			}
				return xRequest;
}
function sendRequest(params,HttpMethod,layer){
	layer1 = layer;
	if (!HttpMethod){
		HttpMethod="GET";
	}
	req=getXMLHTTPRequest();
	if (req){
		req.onreadystatechange=onReadyState;
		req.open(HttpMethod,url,true);
		req.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");
		req.send(params);
	}
}

function onReadyState(){
var ready=req.readyState;
var data=null;
if (ready==READY_STATE_COMPLETE){
data=req.responseText;
}else{
	data="<div align=center>loading...</div>";
//data="<select  style='width:150px'> <option value=''> loading...</option></select>";
}
toConsole(data);
}

function toConsole(data){
	document.getElementById(layer1).innerHTML=data;	
}