title: What is the equivalent of window.createPopup() in Firefox Safari chrome etc
body: <p>It seems that I can't use window.createpopup on other browsers because its not supported. the reason why i was using window.createpopup is because it can popup from one frame  and show on top of another frame on the same page. I am using frameset, so this wasnt possible with other types of dropdown menues. is there anything else i can use which could achieve the same objective (ppup or dropdown from one frame and on top of another)?</p>
  
  <p>edit:</p>
  
  <p>I am not using iframes for frameset</p>
  
  <p>here is how my frameset looks like</p>
  
  <pre><code>&lt;/head&gt;
      &lt;frameset id="frameMain" rows="84,*" framespacing="0"&gt;
         &lt;frame src="pageHeader.html" id="mail" name="mail" frameborder="0" border="0" marginwidth="0" marginheight="0" noresize="noresize" scrolling="no"/&gt;
         &lt;frameset id="frameSet" cols="126,*" framespacing="0"&gt;
             &lt;frame src="page2.html" id="leftnav" name="leftnav" frameborder="0" border="0" marginwidth="0" marginheight="0" noresize="noresize" scrolling="no"/&gt;
             &lt;frame src="empty.htm" id="main" name="main" frameborder="0" border="0" noresize="noresize" scrolling="yes"/&gt;
         &lt;/frameset&gt;
      &lt;/frameset&gt;
  &lt;/html&gt;
  </code></pre>
  
  <p>I want my dropdown menuto be in 'frameMain' and show over the other frames, and not behind them</p>