Refactored the website

Renamed "includes" to "templates"
Added .htaccess to redirect requests to index.php
Added function to split request URL into array
Corrected locations in scripts and pages

templates/login.php

@@ -0,0 +1,15 @@
+<!DOCTYPE html>
+<html>
+    <head>
+        <title>BJPHoster URL Shortener | Login</title>
+    </head>
+    <body>
+        <input type="text" id="form-username"><br>
+        <input type="password" id="form-password"><br>
+        <button onclick="login()">Login</button><br>
+        <div id="responsetext"></div>
+        <script src="js/sha512.min.js"></script>
+        <script src="js/login.js"></script>
+        <script>var script_name = "<?=substr($_SERVER['SCRIPT_NAME'],0,-10)?>";</script>
+    </body>
+</html>