LoginWrite()是產生session id
DemoLoginButton()是登入按鈕
兩者的function alert()出來都是一樣的session id
登入後會跳到main.html
這時在main.html裡，floag會讀不到先前產生的session id
要怎麼讓 session id 繼續延用呢?
是不是session id跳頁就失效了?

function LoginWrite()
{
  UserId = LoginAction("php /app/Web/cgi-bin/sessionID.php", "idAction.php");
  alert(UserId);
  return UserId;
}

function DemoLoginButton()
{
	var floag = LoginWrite();
	alert(floag);

doing....

location.href = "./Web server/main.html";

}

後端: sessionID.php

session_start();
$sessionID = session_id();
echo $sessionID;
session_destroy();

後端: idAction.php

$submitString = $_GET['submitString'];

$Action = $_GET['Action'];

if($Action == "TransmissionStart")
{

$print = shell_exec(urldecode($submitString));
echo $print;
}