var xmlHttp;
var PARAM = '';

function getSelectRegion(param) {
	xmlHttp=GetXmlHttpObject()
	if (xmlHttp==null) {
	alert ("Browser does not support HTTP Request")
		return
	}
	var url="get_region.php"
	url=url+"?param="+param
	url=url+"&sid="+Math.random()
	xmlHttp.onreadystatechange=stateRegionChanged
	xmlHttp.open("GET",url,true)
	xmlHttp.send(null)
}

function stateRegionChanged() {
	if (xmlHttp.readyState==4 || xmlHttp.readyState=="complete") {
		document.getElementById("regions").innerHTML=xmlHttp.responseText
		getSelectStreet(-1, document.getElementById('cityId').value);
	}
}

function getSelectStreet(param, param1) {
	xmlHttp=GetXmlHttpObject()
	if (xmlHttp==null) {
	alert ("Browser does not support HTTP Request")
		return
	}
	var url="get_street.php"
	url=url+"?param="+param
	url=url+"&param1="+param1
	url=url+"&sid="+Math.random()
	xmlHttp.onreadystatechange=stateStreetChanged
	xmlHttp.open("GET",url,true)
	xmlHttp.send(null)
}

function stateStreetChanged() {
	if (xmlHttp.readyState==4 || xmlHttp.readyState=="complete") {
		document.getElementById("streets").innerHTML=xmlHttp.responseText
	}
}

function GetXmlHttpObject() {
	var xmlHttp=null;
	try {
	// Firefox, Opera 8.0+, Safari
		xmlHttp=new XMLHttpRequest();
	}
	catch (e) {
		//Internet Explorer
		try {
			xmlHttp=new ActiveXObject("Msxml2.XMLHTTP");
		}
		catch (e) {
			xmlHttp=new ActiveXObject("Microsoft.XMLHTTP");
		}
	}
	return xmlHttp;
}

function fs_getSelectRegion(param) {
	xmlHttp=GetXmlHttpObject()
	if (xmlHttp==null) {
	alert ("Browser does not support HTTP Request")
		return
	}
	var url="fs_get_region.php"
	url=url+"?param="+param
	url=url+"&sid="+Math.random()
	xmlHttp.onreadystatechange=fs_stateRegionChanged
	xmlHttp.open("GET",url,true)
	xmlHttp.send(null)
}

function fs_stateRegionChanged() {
	if (xmlHttp.readyState==4 || xmlHttp.readyState=="complete") {
		document.getElementById("fs_regions").innerHTML=xmlHttp.responseText
		fs_getSelectStreet(-1, document.getElementById('fs_cityId').value);
	}
}

function fs_getSelectStreet(param, param1) {
	xmlHttp=GetXmlHttpObject()
	if (xmlHttp==null) {
	alert ("Browser does not support HTTP Request")
		return
	}
	var url="fs_get_street.php"
	url=url+"?param="+param
	url=url+"&param1="+param1
	url=url+"&sid="+Math.random()
	xmlHttp.onreadystatechange=fs_stateStreetChanged
	xmlHttp.open("GET",url,true)
	xmlHttp.send(null)
}

function fs_stateStreetChanged() {
	if (xmlHttp.readyState==4 || xmlHttp.readyState=="complete") {
		document.getElementById("fs_streets").innerHTML=xmlHttp.responseText
	}
}