diff --git a/lib/app.function.php b/lib/app.function.php
index 9d3d377..85be8cc 100755
--- a/lib/app.function.php
+++ b/lib/app.function.php
@@ -1,28 +1,19 @@
 <?php
+function urlsafe_base64_encode($url){
+	return strtr( base64_encode( $url ) , '+/', '-_' );
+}
+function urlsafe_base64_decode($url){
+	return base64_decode(strtr( $url , '-_','+/' ));
+}
 function checkLogin(){
 	if( !isLogin() ){
-		$back = $_SERVER['REQUEST_URI']?:'/';
-		if( v('ajax') && isset( $_SERVER['HTTP_REFERER'])&&$_SERVER['HTTP_REFERER'] ){
-			$back = $_SERVER['HTTP_REFERER'];
-		}
-		$state = NULL;
-		if( IFCookie::isNeedFix()  ){
-			$sid = session_id();
-			$state = $sid;
-			$back .= '&'.IFCookie::SESSIONSTR.'='.$sid;
-		}
 		$_SESSION['backUrl'] = $back;
-		$aurl = Weibo::getAuthorizeURL( c('callback') , 'code' , $state );
+		$aurl = Weibo::getAuthorizeURL( c('callback') , 'code' );
 		header("Location: ".$aurl);
 		exit;
 	}
 }
 function isLogin(){
-	if( isset( $_GET['viewer'] ) ){
-		if( $_GET['viewer'] == '' || $_GET['viewer'] != $_SESSION['id'] ){
-			$_SESSION = array();
-		}
-	}
 	if( $_SESSION['id'] ){
 		return true;
 	}else{
diff --git a/themes/default/layout.tpl.html b/themes/default/layout.tpl.html
index e37c145..1ba7e60 100755
--- a/themes/default/layout.tpl.html
+++ b/themes/default/layout.tpl.html
@@ -16,6 +16,5 @@ if(is_file(ROOT.'themes/default/'. $__showPage .'.tpl.html'))
 		echo "<div>can't find  $__showPage html file</div>";
 	
 ?>
-<script type="text/javascript" charset="utf-8" src="http://js.t.sinajs.cn/t4/enterprise/js/public/appframe/client.js"></script>
 </body>
 </html>
\ No newline at end of file