//??XMLHttpRequest????
var http_request = false;
//??????http??????
function send_request(method,url,content,responseType,callback) {//??????????????????
	http_request = false;
	//?????XMLHttpRequest??
	if(window.XMLHttpRequest) { //Mozilla ???
		http_request = new XMLHttpRequest();
		if (http_request.overrideMimeType) {//??MiME??
			http_request.overrideMimeType("text/xml");
		}
	}
	else if (window.ActiveXObject) { // IE???
		try {
			http_request = new ActiveXObject("Msxml2.XMLHTTP");
		} catch (e) {
			try {
				http_request = new ActiveXObject("Microsoft.XMLHTTP");
			} catch (e) {}
		}
	}
	if (!http_request) { // ???????????
		window.alert("????XMLHttpRequest????.");
		return false;
	}
	if(responseType.toLowerCase()=="text") {
		//http_request.onreadystatechange = processTextResponse;
		http_request.onreadystatechange = callback;
	}
	else if(responseType.toLowerCase()=="xml") {
		//http_request.onreadystatechange = processXMLResponse;
		http_request.onreadystatechange = callback;
	}
	else {
		window.alert("?????????");
		return false;
	}
	// ??????????URL????????????
	if(method.toLowerCase()=="get") {
		http_request.open(method, url, true);
	}
	else if(method.toLowerCase()=="post") {
		http_request.open(method, url, true);
		http_request.setRequestHeader("Content-Type","application/x-www-form-urlencoded");
	}
	else {
		window.alert("http?????????");
		return false;
	}
	http_request.send(content);
}
// ?????????????
function processTextResponse() {
	if (http_request.readyState == 4) { // ??????
		if (http_request.status == 200) { // ???????????????
			//alert(http_request.responseText);
			alert("Text?????");
		} else { //?????
			alert("???????????");
		}
	}
}
//?????XML???????
function processXMLResponse() {
	if (http_request.readyState == 4) { // ??????
		if (http_request.status == 200) { // ???????????????
			//alert(http_request.responseXML);
			alert("XML?????");
		} else { //?????
			alert("???????????");
		}
	}
}


var NS4 = ((navigator.appName == 'Netscape') && (parseInt(navigator.appVersion) == 4));

var formHTML = new Object();

function getElement(id) {
return document.all ? document.all(id) :
document.getElementById ? document.getElementById(id) :
NS4 ? document.layers[id] :
null;
}