When no array, hide parity check history details

emhttp/plugins/dynamix/ArrayOperation.page

@@ -20,6 +20,7 @@ $keyfile = file_exists(_var($var,'luksKeyfile'));
 $missing = file_exists('/var/tmp/missing.tmp');
 $encrypt = false;
 $spot    = _var($var,'mdResyncPos',0)>0;
+$poolsOnly  = (_var($var,'SYS_ARRAY_SLOTS') == 0 ) ? true : false;
 
 /* only one of $present, $missing, or $wrong will be true, or all will be false */
 $forced = $present = $wrong = false;
@@ -487,6 +488,7 @@ window.onunload = function(){
 <?      elseif ($action[0]=="check"):?>
           <tr><td></td><td><input type="submit" name="cmdCheck" value="_(Check)_"></td><td>**_(Check)_** _(will start **Read-Check** of all array disks)_.</td></tr>
 <?      endif;?>
+<?      if (!$poolsOnly):?>
         <tr><td></td><td><input type="button" value="_(History)_" onclick="parityHistory()"></td>
 <?      [$date,$duration,$speed,$status,$error,$action,$size] = last_parity_log();
         if (_var($var,'sbSyncExit',0)!=0):?>
@@ -518,6 +520,7 @@ window.onunload = function(){
           <br><i class="fa fa-fw fa-clock-o"></i> _(Duration)_: <?=my_check($duration,$speed)?>
           <br><i class="fa fa-fw fa-search"></i> <?=print_error(_var($var,'sbSyncErrs',0))?></td></tr>
 <?      endif;
+        endif; // end check for poolsOnly
       endif;
     else:
       if ($action[0]=="recon"):