// JavaScript Document
var XMLHttpRequestObject = false;
if (window.XMLHttpRequest) 
{
	XMLHttpRequestObject = new XMLHttpRequest();
}
else if (window.ActiveXObject)
{
	XMLHttpRequestObject = new ActiveXObject("Microsoft.XMLHttp");
}

function clearList(divID){
	var list = document.getElementById(divID);
    while(list.childNodes.length > 0) {
		list.removeChild(list.childNodes[0]);
	}
}

function changsubtype(event,pid,url,divID){//䦸O
if(XMLHttpRequestObject)
	{
		XMLHttpRequestObject.open("GET", url+"?pid="+pid,true);
		XMLHttpRequestObject.onreadystatechange = function()
		{
			if (XMLHttpRequestObject.readyState == 4 && XMLHttpRequestObject.status == 200)
			{
				clearList(divID);
		
				var objDiv = document.getElementById(divID);
				var option =null;
				var results = XMLHttpRequestObject.responseText;
				results=eval(results);
				for(var i = 0; i < results.length; i++) {
					objDiv.options[i] = new Option(results[i].text,results[i].value); 
				}
			}
		}
		XMLHttpRequestObject.send(null);
	}
}