var req;
var divto=null;
var Ready_State_Unitialized=0;
var Ready_State_Loading=1;
var Ready_State_Loaded=2;
var Ready_State_Interactive=3;
var Ready_State_Complete=4;


function sendRequest(url, div, param)
{
    var HttpMethod="Get";
    divto = div;
	req= initXMLHTTPRequest();
	if (req){		
		req.open(HttpMethod, url, false);
		//req.onreadystatechange=onReadyState;
		req.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");
		req.send();		
		onReadyState();
	}
}

function initXMLHTTPRequest()
{
	var xRequest=null;	
	xRequest = new XMLHttpRequest();
	return xRequest;
}



function onReadyState()
{
	var ready=req.readyState;
	var data=null;
	if (ready==Ready_State_Complete){
		data=req.responseText;
		ProcessPage(data,divto);
	}else{
		data="verifing...["+ready+"]";
	}
	
}

function ProcessPage(data, divto){

    document.getElementById(divto).innerHTML = data;
	showlayer(divto);
}

function hidelayer(layername)
{
    document.getElementById(layername).style.display = "none";
}

function showlayer(layername)
{
    document.getElementById(layername).style.display = "block";
}