<!--
function keepSession() {
	var img_cp = new Image();
	var tm_cur = new Date();
	var n_sec = (3 * 60);
  if (img_cp) {
    img_cp.src = '/script/drm_util_keepsession.asp?ct=image/png&tm=' + tm_cur.getTime();
  }
	setTimeout('keepSession()', n_sec * 1000);
}
function keepSession_iframe() {
	var tm_cur = new Date();
	var n_sec = (3 * 60);
	var html = '<iframe src="' + ('/script/drm_util_keepsession.asp?sec=' + n_sec + '&tm=' + tm_cur.getTime()) + '" width="0" height="0" frameborder="no"></iframe>';
	document.write(html);
}
keepSession();
keepSession_iframe();
//-->

