kafe.real.js

Simple solution, simple code, simple goal.

You may want to tweak as your need fits better. Better than a complex plugin unreadable.

Tests

0.1     0,10
0.11    0,11
0.111   0,11
0.99    0,99
1       1,00
10      10,00
100     100,00
1000    1.000,00
10000   10.000,00
100000  100.000,00
1000000 1.000.000,00
99.99   99,99
99.999  100,00
99.01   99,01
99.09   99,09
99.199  99,20

demo

http://jsfiddle.net/shalanga/pwfuy927/