<input type="button" id="clearTrackButton" value="Clear"
onclick="clearTrack();">
</p>
+<p class="loginbox">
+<button type="button" id="loginbtn" class="hidden">Sign in</button>
+<span id="logindesc" class="hidden">to enable uploads</span>
+<span id="username" class="hidden"></span>
+<button type="button" id="logoutbtn" class="hidden">Log out</button>
+</p>
<p>
<input type="checkbox" id="trackCheckbox"
onchange="setTracking(this);">