var screen_ht = screen.availHeight;
var screen_wd = screen.availWidth;
var screen_left = 0;
var screen_top = 10;

sslurl="https://www.wangfoong.com.hk/doLogin.php"
nosslurl="http://www.wangfoong.com.hk/doLogin.php"
ssllogout="https://www.wangfoong.com.hk/doLogout.php"
nossllogout="http://www.wangfoong.com.hk/doLogout.php"

function doLogin(ssl)
{
	var url = sslurl;
	if(ssl=='no'){
		url = nosslurl;
	}
	var loginFrm = document.loginFrm;
	
	var w_ht = screen_ht - 60;
	var w_wd = screen_wd - 30;
	var windowType = "left=10,top=10,screenX=10,screenY=10,";
	windowType += "height=" + w_ht + ",width=" + w_wd + ",scrollbars=1,resizable=1,status=1";
	var windowName = "CargoTracking";
	loginFrm.method = "POST";
	loginFrm.action = url;
	loginFrm.target = "CargoTracking";
	if (window.loginWindow) {
		if (!loginWindow.closed) { alert("You may have already signed in.\n\nPlease make sure you have closed the previous session before attempting to sign in again.") }
		else {
			loginWindow = window.open(url, windowName, windowType)
			loginWindow.window.focus()
			loginFrm.submit();
		}
	}	
	else {
		loginWindow = window.open(url, windowName, windowType)
		loginWindow.window.focus()
		loginFrm.submit();
	}
	loginFrm.elements['userid'].value ="";
	loginFrm.elements['password'].value ="";
}

function doLogout(ssl)
{
	var logouturl = ssllogout;
	if(ssl=='no'){
		logouturl = nossllogout;
	}
	var win=window.open(logouturl,"",",width=0,height=0");
	win.focus();
}