GPS and Signing

[Thommas]

My very last request (I hope) :

As my phone is a French one, Latitude and Longitude are with a comma instead of a dot.

I imagined this code :
function getLat(lat : String) : Number
{
   if (lat.charAt(1) == ".")
      return Number(lat);
   var ac : Array = lat.split(",");
   return Number(ac[0] + "." + ac[1]);
}
getLat(result.klPosLatitude);

Which might slow my app ...

Do you think about another cleaner way to solve this problem ?

Thank you.
Best regards.