function makeRequest(url) {
	var http_request = false;

	if (window.XMLHttpRequest) { // Mozilla, Safari,...
		http_request = new XMLHttpRequest();
	} else if (window.ActiveXObject) { // IE
		http_request = new ActiveXObject("Microsoft.XMLHTTP");
	}

	if (!http_request) {
		return false;
	}
	// 定義事件處理函數為 alterContents()
	http_request.onreadystatechange = function() { 
		showRate(http_request); };
		try {
		http_request.open('POST', url, true);
		http_request.send(null);
		} catch(err) {
			
		}
}

function showRate(http_request) {
	if (http_request.readyState == 4) {
		if (http_request.status == 200) {
			//var rate = document.getElementById('rate');
			//msg = "<font color='red'>今日Skype點數購買匯率，歐元：新台幣 = 1:" + http_request.responseText + "</font>";
			msg = http_request.responseText;
			//alert(msg.indexOf("今日Skype點數購買匯率"));
			//msg = msg.substr(msg.indexOf("今日Skype點數購買匯率"), 33);
			//rate.innerHTML = msg;
		}
	}
}

makeRequest("http://skype.pchome.com.tw/skypeout.jsp");