If I understand correctly what is happening is that you have your foot on the brake and the pedal drops down slowly and it decreases the stopping power?
Have you had any work done on the brakes lately or the car in general?
If the pedal drops slowly and the car does nto stop, it sounds to me like the Master Cylinder. I would ahve this checked out asap! As it can be quite dangerous!
Insanity: doing the same thing over and over again and expecting different results.
2006 - Suzuki Gran Vitara (2.0 L fully equipped) Like this car so far except for trying to put on the seatbelt.
1988 - 190e - 2.3L - 172K miles (It now belongs to the exwife)
1999 - Chevy Blazer LS Fully Equiped - killed it June 2006
2001 - Honda Civic EX - 68K miles (sold June 2004)
1963 - 220S - Dual Carb 6 cyl. (sold)
1994 - Yamaha WaveRaider (fun to ride)