This sample shows how to configure the Enter and Shift+Enter keys
        to perform actions specified in the
        enterMode
        and shiftEnterMode
        parameters, respectively.
        You can choose from the following options:
    
ENTER_P – new <p> paragraphs are created;ENTER_BR – lines are broken with <br> elements;ENTER_DIV – new <div> blocks are created.
        The sample code below shows how to configure CKEditor to create a <div> block when
        Enter key is pressed.
    
CKEDITOR.replace( 'textarea_id', {
	enterMode : CKEDITOR.ENTER_DIV
});
    
        Note that textarea_id in the code above is the id attribute of
        the <textarea> element to be replaced.