make separator image disableable

about.php

@@ -1,4 +1,6 @@
-<?php include('header.tpl'); ?>
+<?php 
+    include('header.tpl'); 
+?>
 <div id="content_margin">
     <video autoplay playsinline nofullscreen nodownload autoplay loop mute style="pointer-events: none" src="video/Heart.m4v" width="80%" height="auto" ></video>
 

collections.php

@@ -1,4 +1,7 @@
-<?php include('header.tpl'); ?>
+<?php 
+  $show_sep=true;
+  include('header.tpl');
+?>
 <div id="content_padding">
 <?php include('projects_data/project_items.php'); ?>
 <div class="collection_container">

header.tpl

@@ -23,5 +23,9 @@
             </ul>
         </nav>
     </header>
-    <img style="filter: brightness(110%) contrast(80%); position:relative; top: 90px; width: 100%; height: auto" src="/images/background_img/dev_con.jpg"/>
+    <?php
+    if ($show_sep == true) {
+        print('<img style="filter: brightness(110%) contrast(80%); position:relative; top: 90px; width: 100%; height: auto" src="/images/background_img/dev_con.jpg"/>');
+    }
+    ?>
     

jewellery.php

@@ -1,5 +1,11 @@
-<?php include('header.tpl'); ?>
+<?php 
+$show_sep=true;
+include('header.tpl'); 
+?>
 
+<div id="content_padding">
+
+</div>
 
 
 <?php include('footer.tpl'); ?>