请问论坛自动填写表单有关问题

请教论坛自动填写表单问题
<textarea class="autosave" name="message" id="e_textarea" prompt="post_message" tabindex="1" class="txt" style="height:300px"></textarea>

上面是网页的HTML代码,,,,,用VB怎么实现自动填写表单啊,,,
请高手指点,,,谢谢

------解决方案--------------------
VB code
'调用编辑器它自己的方法写内容
Private Sub WebBrowser1_DocumentComplete(ByVal pDisp As Object, URL As Variant)
    Dim oDoc As HTMLDocument
    Set oDoc = pDisp.Document
        
    Dim oTxt As HTMLTextAreaElement
    Set oTxt = oDoc.getElementById("e_textarea")
    
    If oTxt Is Nothing Then Exit Sub
    
    oDoc.parentWindow.execScript "writeEditorContents(""hello world!"");"
End Sub