If you don't want to use FindControl method to get the editor ID, you can get the editor be checking the html code.
Right click in your browser, click view source.
For example:
<table cellspacing="0" cellpadding="0" _IsCuteEditor="True" id="CE_Editor1_ID"...
</table>
CE_Editor1_ID is the ID of Editor.
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Web Messenger: http://cutesoft.net/Web-Messenger/default.aspx
asp.net wysiwyg editor: http://cutesoft.net/ASP.NET+WYSIWYG+Editor/default.aspx
asp wysiwyg html editor: http://cutesoft.net/ASP
asp.net Image Gallery: http://cutesoft.net/ASP.NET+Image+Gallery/default.aspx
Live Support: http://cutesoft.net/live-support/default.aspx