JavaScript Show/Hide like Menu!

[Lapenna]

Hey there!
Im making a New Layout for my Site, and i need to create a Hide/Show menu like in TIbia RL..Well, i did it in Javascript, but when i change page or Refresh it closes again.. and i need to let it open (at least some of then)

Script:

function change(id){
     ID = document.getElementById(id);
    
     if(ID.style.display == "")
          ID.style.display = "none";
     else
          ID.style.display = "";
      }

And the Menu HTML is :

<table>

 <tr>
    <td onclick="change(1)" class="btn_menu"><img src="<?PHP echo $layout_name; ?>/img/menu/news.gif" alt="News" /></td>
  </tr> 

  <!-- Sub menu 1 -->
  <tr style="display: none" id="1"><td>
  <a class="btn_menu_text" href="?subtopic=latestnews">  <div id='news_Label' class='Label' style='background-image:url(<?PHP echo $layout_name; ?>/img/menu/news_icon.gif);'></div>    <div class='SubmenuitemLabel'>Latest News</div></a>
   <a class="btn_menu_text" href="?subtopic=archive">  <div id='news_Label' class='Label' style='background-image:url(<?PHP echo $layout_name; ?>/img/menu/archive_icon.gif);'></div>    <div class='SubmenuitemLabel'> News Archive</div></a>

  </td></tr>
 

 
 
  
		</ul>  
</table>

Hope someone can help..
Cya