fixes #276 popup alert appearing under admin content

public/templates/admin/footer.tpl

@@ -1,6 +1,9 @@
 
 		</div>
 	</div>
+
+	<div id="alert_window"></div>
+
 	<div id="footer" class="container" style="padding-top: 50px; display:none;">
 		<footer class="footer">Copyright &copy; 2013 <a target="_blank" href="http://www.nodebb.com">NodeBB</a> by <a target="_blank" href="https://github.com/psychobunny">psychobunny</a>, <a href="https://github.com/julianlam" target="_blank">julianlam</a>, <a href="https://github.com/barisusakli" target="_blank">barisusakli</a> from <a target="_blank" href="http://www.designcreateplay.com">designcreateplay</a></footer>
 	</div>

public/templates/admin/header.tpl

@@ -63,8 +63,6 @@
 		</div>
 	</div>
 
-	<div id="alert_window"></div>
-
 	<div class="container">
 		<div class="row">
 			<div class="col-md-3">