SetTrailingStop question

[cash@xxxxxxxxxxx]

I'm using an intraday 1-minute chart.

If I use the command:
SetTrailingStop(.25);
I understand this will set a trailing stop at 25 cents.

If 200 bars later (on the same day), I use the command:
SetTrailingStop(.50);
Will this change the trailing stop to 50 cents or will I now have 2 
trailing stops, one at 25 cents and one at 50 cents.
If I have two stops now, how can I do this and only have one trailing 
stop?

Thanks,

Cash


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