ajax响应包含整个页面的html而不是文本编辑器的内容

i am working with ckeditor.I used ajax to send the content of the ckeditor using post method.My plan is to show the response in a div .But in response i get the html for the whole page enclodes by html tag instead of only the editor's content.What is going on here? How can i get only the editor's content i am working with ckeditor.I used ajax to send