IE iframe input content

#include <IE.au3>
Local $link 
Local $oIE 
$link = String("http://gobuykorean.cc/")
$oIE = _IECreate($link)
$HWND = _IEPropertyGet($oIE, "hwnd")
WinSetState($HWND,"",@SW_MAXIMIZE)
_IEAction($oIE, "visible")
_IELoadWait($oIE)
 
$oIE = _IELinkClickByText($oIE,"發表")
_IELoadWait($oIE)
_IEAction($oIE, "click")

<div id="xe-editor-container-1" class="input_area xpress_xeditor_editing_area_container" style="height: 300px;">
            <iframe id="editor_iframe_1" allowtransparency="true" frameborder="0" src="http://gobuykorean.cc/modules/editor/styles/default/editor.html" scrolling="yes" style="width: 100%; height: 300px; display: block;"></iframe><textarea id="xpress-editor-1" rows="8" cols="42" style="display: none; width: 100%;"></textarea><textarea rows="8" cols="42" class="input_syntax " style="display: none;"></textarea>
        </div>
<iframe id="editor_iframe_1" allowtransparency="true" frameborder="0" src="http://gobuykorean.cc/modules/editor/styles/default/editor.html" scrolling="yes" style="width: 100%; height: 300px; display: block;"></iframe>