CCi cross over indicator

I require a simple indicator that sends me an email alert every time the CCi indicator goes up into the 100 or down into -100 area and then recrosses the 100 + (-100) area. The valid signal is the recross and this is when the email will be sent. It must send this alert at the end of the candle close. It will show an arrow on the chart for the recross. It will have the ability to set a time of operation. I.e. only send out alerts from 06:00 to 22:00. Thanks, James