// JScript 文件
var idInterval = 0;
var original_title = document.title;

var hasChange = false;

// 改变消息显示图标
function changeMessage()
{
	var _obj = document.getElementById("msg_center");
	if (hasChange)
	{
		_obj.src = "http://www.zhaoguyou.com/images/head/msg_b.gif";
		document.title = original_title;
		hasChange = false;
	}
	else
	{
		_obj.src = "http://www.zhaoguyou.com/images/head/msg_y.gif";
		document.title = "【新消息】 - " + original_title;
		hasChange = true;
	}
}

function showMessage()
{
	idInterval = setInterval(changeMessage, 1000);
}

function stopMessage()
{
	var _obj = document.getElementById("msg_center");
	_obj.src = "http://www.zhaoguyou.com/images/head/msg_b.gif";
	document.title = original_title;
	
	if (idInterval > 0)
		window.clearInterval(idInterval);
}