problem with CKEditor

Hi All,

I have a problem implementing CKEditor. I am implementing it with php and validating inputs on server side.

The problem is if I click on submit without touching ckeditor, it program show me the error. But when I click in the text area and chang the font but type nothing; it adds span tag to the text area body. For me it is blank and for the site users too.

And now when I click submit it doesn't show the errors which i feel is not right.

Any solution??

Thanks in advance.