window.onload = function ()
{
	var mem_sess = document.getElementById('member_session').value;
	if(mem_sess != ''){
		var cd_sec = 600;
		var ss = new ScreenSaver(600000,cd_sec);
		timer_countdown(cd_sec);
	}
}

var ScreenSaver = function (waitTime,c_sec) {
	this.lastActivity = new Date().getTime();
	this.waitTime = waitTime;
	
	var $this = this;
	this._timer = setInterval(function () { $this._checkTime.call($this) }, 1000);
	document.onmousemove = function () {$this._mouseHandler.call($this), clear_timer(), timer_countdown(c_sec)};
};

ScreenSaver.prototype = {
	_timer: null,
	
	lastActivity: 0,
	started: false,
	waitTime: 0,
	
	dispose: function () {
		if (this._timer) clearInterval(this._timer);
		document.onmousemove = null;
	},
	
	_checkTime: function () {
		if (!this.started && new Date().getTime() - this.lastActivity >= this.waitTime) {
			this.started = true;
		}
	},
	
	_mouseHandler: function () {
		this.lastActivity = new Date().getTime();
		if (this.started) {
			sessChecking();
			this.lastActivity = new Date().getTime();
			this.started = false;
		}
	}
};

var clear_timer = function(i){
	clearTimeout(t);
	return;
}

var timer_countdown = function(i){
	// write out count
	if (i == 0) {
		return;
		// stop
	}
	t=setTimeout(function() {
		// repeat
		timer_countdown(i - 1);
		},
	1000
	);
}

function close_bmsg(val){
	document.getElementById('browser_msg').style.display = 'none';
	if(val == 1){
		var myRequest = new Request({method: 'get', url: 'http://www.cni.com.sg/login/dialog/m_xbd'});
		myRequest.send('');
	}
}

function sessChecking(){
	var myRequest = new Request({
		method: 'get', 
		url: 'http://www.cni.com.sg/login/dialog/m_sess',
		onSuccess: function(responseText){
			if(responseText == 0){
					alert('Sorry, your session has expired.\n\nPlease login again. Thank you.');
					window.location = "http://www.cni.com.sg";
			}
	    }
	});
	myRequest.send('');
}