<if condition="$show['largereplybutton']">
        <td class="smallfont"><a href="newreply.php?$session[sessionurl]do=newreply&amp;noquote=1&amp;p=$LASTPOSTID" rel="nofollow"><if condition="$show['closethread']"><img src="$stylevar[imgdir_button]/reply.gif" alt="$vbphrase[reply]" border="0" /><else /><img src="$stylevar[imgdir_button]/threadclosed.gif" alt="$vbphrase[closed_thread]" border="0" /></if></a></td>
    <else />

<if condition="$show['largereplybutton']">
<if condition="$show['member']">
        <td class="smallfont"><a href="newreply.php?$session[sessionurl]do=newreply&amp;noquote=1&amp;p=$LASTPOSTID" rel="nofollow"><if condition="$show['closethread']"><img src="$stylevar[imgdir_button]/reply.gif" alt="$vbphrase[reply]" border="0" /><else /><img src="$stylevar[imgdir_button]/threadclosed.gif" alt="$vbphrase[closed_thread]" border="0" /></if></if></a></td>
    <else />

<if condition="$show['registerbutton']">
            <style>
#alert {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  font-size: 16px;
  background-color: #D98008;
  color: white;
  padding: 20px;
  text-align: center;
  z-index: 9999;
}

button {
  background-color: #D98008; /* Green */
  border: none;
  color: white;
  padding: 16px 32px;
  text-align: center;
  text-decoration: none;
  display: inline-block;
  width: 100%;
  font-size: 16px;
  margin: 4px 2px;
  transition-duration: 0.4s;
  cursor: pointer;
}

button:hover {
  background-color: #fff;
  border: solid 2px #D98008;
  transtition: 1s;
  color: #D98008;
}
</style>   
<link href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/4.7.0/css/font-awesome.min.css" rel="stylesheet" />
<button id="myButton">
      أضف رد للموضوع 
</button>
<div dir="rtl" id="alert">
      <em class="fa fa-exclamation-triangle"> انت لست عضوًا بالمنتدى، فقط الاعضاء لديهم صلاحية  الرد  على المواضيع </em>
</div>
                     <script>
document.getElementById("myButton").addEventListener("click", function() {
  document.getElementById("alert").style.display = "block";
  setTimeout(function(){
    document.getElementById("alert").style.display = "none";
  }, 2000); // يختفي التنبيه بعد 2 ثانية
});
</script>
</if>