allow image zoom and rotate

html/images.php

@@ -1,18 +1,14 @@
 <?php
 exec("docker images -aq", $res, $ret);
 if ($ret!=0) {
-  echo 'digraph {';
   echo '  A [label="Error\nCannot get Docker Images"];';
   echo '  B [label="Does the Webserver have Docker rights?"];';
   echo '  A->B [label="Probable\nCause"];';
-  echo '}';
   return;
 }
 exec("docker inspect ".join(" ", $res), $res2, $ret);
 if ($ret==0) {
   $images=json_decode(join($res2), true);
-  echo "digraph {\n";
-  echo "  rankdir=TB;\n";
 
   foreach ($images as $i) {
     $name = "";
@@ -42,11 +38,8 @@ if ($ret==0) {
     }
   }
   
-  echo "}";
 } else {
-  echo 'digraph {';
   echo '  A [label="Error\nCannot Inspect Docker Container"];';
-  echo '}';
   return;
 }