Ajax Html Editor Extender Auto Focus

Question

Hi Every One



  I am developing one site i used Ajax Editor Extender..
  When server site event fire at that time focus Automatically sent on HtmlEditorExtender. On Every server site event first focus went to htmlEditorExtender after other control.
 
  How to Prevent Automaticaly focusing on HtmlEditorExtender control.(I don't want use Html Editor, have to use Ajax HtmlEditorExtender)


Thanks