[amibroker] Help with one line of code.

["conchoriverwater" <conchoriverwater@xxxxxxxxx>]

When I am doing a back test, I want to trigger the sell at exactly 
10 bars after the buy. 
When I use the following code, there is a problem.

G = BarsSince(Buy); 
Sell=IIf(G==10,1,0);

The bar count starts again every time a buy condition is hit.
If a buy is hit two bars in a row, it doesn't work.

Is there a better way to do this?

Please keep it simple. I cut and paste a lot of code and only 
understand the simple stuff.

Thanks

James