How to open in a new window

[fxwoody]

Ok, i'ved been using an imagehost script for a good while now but i'm stuck with an iFrame script
that is added to my editor_toolbar_on for users to upload there images when posting etc etc.

Problem i have is that the actual script works great but instead of opening a new tab for the imagehost, i would like the tab to open in a new floating window, like we can do with

javascript:void(0)' onclick='window.open("http://mywebimageblabla.com/","link","height=450,width=650,scrollbars=yes,status=yes")

but i can't figure out where to had this kind of script to an iFrame!!

This is my iFrame script for the editor box

<!-- Imganinarium uploader -->
      <div class="blockrow">
	<label for="thumbnailurl" class="full">Imaginarium Uploader:</label>
                 <span id="iframe_uploader"></span>
                    <script type="text/javascript" src="http://myweb.com/imaginarium/source/includes/scripts/jquery.js"></script>
                    <script type="text/javascript" src="http://myweb.com/imaginarium/source/includes/scripts/genjscript.js"></script>
                    <script type="text/javascript">$('#iframe_uploader').html(get_ajax_content("http://myweb.com/imaginarium/index.php?module=iframeupload"));</script><noscript>Your browser does not support Javascript.</noscript>
      </div>
<!-- end -->

Anyone with an idea on this????
Would be appreciated a lot