Session_OnStart fires off twice

[xenomage]

hi all,

got this major problem.

i used Session_OnStart to set a number of variables so as to check for time out. At the same time, i have a link to another page within the same site. so by right, when i link to that page, session_onstart should not be accessed again right?? but that is not what's happening.

the link is like this in javascript

strURL = "/tran/trans_mypage.asp?login_status=yes&brand=" + tBrand;

if (parent.maincenter)
parent.maincenter.location.href = strURL;

please help. THANKS!!!