Не силен в JS - прошу помощи.

Хотел заменить глючный плагин rj_insertcode TinyMCE (Version: 3.4.4) на эдитор EditArea

В попуп-окно эдитор вставил, а как вывести содержание в TINY не получается

	<script language="javascript" type="text/javascript">
		function init() {
			var inst = tinyMCE.selectedInstance;
			var elm = inst.getFocusElement();
			alert("Got a window argument from plugin: " + tinyMCE.getWindowArg('some_custom_arg'));
			document.forms[0].codeContent.value = elm.nodeName;
		}

		function insertSomething() {
			tinyMCEPopup.execCommand('codeContent');
			tinyMCEPopup.close();
		}
	</script>


    <table border="0" cellspacing="0" cellpadding="2">
    <tbody>
	<script language="javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
     <script language="Javascript" type="text/javascript">
        editAreaLoader.init({
             language:"ru"
            ,id: "popuptextarea"    // id of the textarea to transform   			
            ,start_highlight: true    // if start with highlight
            ,allow_toggle: true
		    ,syntax_selection_allow: "html,php,js,css"
            ,syntax: "html"
            ,allow_resize: "both"
            ,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight"
            ,show_line_colors: true                      
        });
     </script>
     </tbody>
    </table>


    <form onsubmit="insert();return false;">
      <textarea name="codeContent" id="popuptextarea" cols="100" rows="15"
          style="width: 100%; font-family: 'Courier New',Courier,mono; font-size: 12px;"
          dir="ltr" wrap="off">  </textarea>

		<div class="mceActionPanel">
			<input type="submit" id="insert" name="insert" value="{#insert}" onclick="insertSomething();" />
			<input type="button" id="cancel" name="cancel" value="{#cancel}" onclick="tinyMCEPopup.close();" />
		</div>
	</form>