In my comet chat application smiley popup
window is not closing after sending chat message.Now it can close only manually choose the close button,But in the case of attachment
it automatically closed after attachment places to chat room.
Is any settings(comet chat admin side) or option for do this
There is no setting in the backend to do this. This is the normal behaviour. This is there because if the user wishes to type post adding a smiley he can. Otherwise if it closes automatically like attachments then the user will have to again click on the text box area after adding every smiley which is not a user friendly approach thus it behaves differently than how attachment work.