Forex Metatrader 4 Alert Needed

I need a metatrader programmer that can design and code me a metatrader 4 Alert Function. I basically want an alert function that I can add to Metatrader charts that will send an email alert when the DMI lines of ADX (11) cross. This should only send one email when the actual lines cross. I am assuming that the alert can be added to any pair and any time frame to work once added to that particular chart. Additionally perhaps (as I'm going for simplicity and reasonable cost) could an arrow be placed on the chart both in real-time and in history when these setups occur (for visual referencing). Thank you.