function createRequestObject(){
	var request_;
	var browser = navigator.appName;
	if(browser == "Microsoft Internet Explorer"){
		request_ = new ActiveXObject("Microsoft.XMLHTTP");
	}else{
		request_ = new XMLHttpRequest();
	}
return request_;
}

var http = createRequestObject();

function get_towns(country){
	http.open('get', 'get_towns.php?country='+country+'&z='+Math.random());
	http.onreadystatechange = handleInfo;
	http.send(null);
}

function handleInfo(){
	if(http.readyState == 1){
		document.getElementById('town').innerHTML = '<select id="city" name="city" width="150"><oprion value="">Loading cities...</option></select>';
	}
	if(http.readyState == 4){
		var response = http.responseText;
		document.getElementById('town').innerHTML = response;
	}
}