function do_city(value){
    document.getElementById("form_raion").innerHTML = '<label>Район города</label> <img src="/img/loader.gif">';
	var req=new JsHttpRequest();
	req.onreadystatechange=function() {
		if(req.readyState==4) document.getElementById("form_raion").innerHTML=req.responseText;
	}
	req.open(null,"/tpl/___search_city.php",true);
	req.send({country:value});
}

function do_raion(value){
    document.getElementById("form_metro").innerHTML = '<label>Район города</label> <img src="/img/loader.gif">';
	do_raion2city(value);
	var req=new JsHttpRequest();
	req.onreadystatechange=function() {
		if(req.readyState==4) document.getElementById("form_metro").innerHTML=req.responseText;
	}
	req.open(null,"/tpl/___search_raion.php",true);
	req.send({country:value});
}
function do_raion2city(value){
    document.getElementById("form_city").innerHTML = '<label>Район города</label> <img src="/img/loader.gif">';
	var req=new JsHttpRequest();
	req.onreadystatechange=function() {
		if(req.readyState==4) document.getElementById("form_city").innerHTML=req.responseText;
	}
	req.open(null,"/tpl/___search_raion2city.php",true);
	req.send({country:value});
}

function do_metro(value){
var req=new JsHttpRequest();
req.onreadystatechange=function(){
if(req.readyState==4) document.getElementById("form_raion").innerHTML=req.responseText;}
req.open(null,"/tpl/___search_metro.php",true);
req.send({country:value});}