// JavaScript Document
var xmlHttp;
var regionId;
function getHTTPObject() 
{
	var XMLHttpRequestObject;	  
	if (window.XMLHttpRequest) {
	XMLHttpRequestObject = new XMLHttpRequest();
	} 
	else if (window.ActiveXObject) {
	XMLHttpRequestObject = new ActiveXObject("Microsoft.XMLHTTP");
	}
	return XMLHttpRequestObject;
}

function selectRegion()
{
	xmlHttp=getHTTPObject()
    if (xmlHttp==null)
    {
		alert ("Your browser does not support AJAX!");
		return;
    }
	regionId = document.bareboatSearch.region.value;
	
	var url = "/subRegionList.php";
	url=url+"?regionId="+regionId;
	url=url+"&sid="+Math.random();
	xmlHttp.onreadystatechange=newState;
	xmlHttp.open("GET",url,true);
	xmlHttp.send(null);
}

function newState() 
{
	if (xmlHttp.readyState==4)
	{
		document.getElementById('subregList').innerHTML = xmlHttp.responseText;
	}
}