diff --git a/html/index.php b/html/index.php
index 106cbf9..f2fff07 100644
--- a/html/index.php
+++ b/html/index.php
@@ -1,3 +1,11 @@
+<?php
+	session_start();
+	if( isset($_SESSION['username']) && strlen($_SESSION['username'])>=4 ){
+		$strui_login = "<a id=\"anc_login\" class=\"shb_TitleRHS\" href=\"post_handler.php?action=logout\" style=\"margin-right: 10px;\"  >Logout</a>";
+	}else{
+		$strui_login = "<a id=\"anc_login\" class=\"shb_TitleRHS\" href=\"index.php\" style=\"margin-right: 10px;\"  >Login</a>";
+	}
+?>
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
 <html xmlns="http://www.w3.org/1999/xhtml">
   
@@ -20,7 +28,7 @@
 		
 	<div id="shb_Header" class="flex_header"  >
 		<div id="shb_Title" class="shb_Title" ><img src="img/uk-green.png" style="margin-right: 20px; height: 40px;" >Backup Commander<span id="shb_pageName" style="margin-left:30px; font-size: 10px;">Version 0.9.1</span></div>
-		<a id="anc_login" class="shb_TitleRHS" href="post_handler.php?action=logout" style="margin-right: 10px;"  >Login</a>
+		<?php echo $strui_login; ?>
 	</div>
 
 	<div class="page_inner">
