var r=null;
var login_div=null;
var login_div_id='login_div';
try { r=new XMLHttpRequest(); } // Opera, FF, IE7(?)
catch(err) { r==null; }
if(r==null) {
  try { r=new ActiveXObject("Microsoft.XMLHTTP"); } // IE6
  catch(err1) { r==null; }
}
base_url="/resource/room_login.php?ajx_login=1";

function get_login() {
	login_div=document.getElementById(login_div_id);
	login_div.innerHTML="<img src='/image/loading.gif' style='width:32px;height:32px;'>";

	try { r.open("GET", base_url, true); }
	catch(err){ r.open("GET", base_url); }
	r.setRequestHeader("If-Modified-Since", "Sat, 1 Jan 2000 00:00:00 GMT");
	r.setRequestHeader("Content-type", "application/x-www-form-urlencoded"); 
	r.setRequestHeader("Content-length", base_url.length);
	r.onreadystatechange = updatePage;
	try { r.send(base_url); } catch(err) { login_div.innerHTML=""; }
}

function updatePage() {
if(r.readyState == 4 && r.status == 200 && login_div!=null) { login_div.innerHTML = r.responseText; login_div=null; }
}