页面上存在多个FckEditor编辑器的验证方法

<FCKeditorV2:FCKeditor ID="fckDescription" runat="server" ToolbarSet="Basic" Height="250">
</FCKeditorV2:FCKeditor>

function FCKeditor_OnComplete(editorInstance)
{
oEditer = FCKeditorAPI.GetInstance('fckDescription');
}