applet memory leak

It looks like that with Safari, when Javascript calls an applet function with a parameter, twice the size of the parameter is eated in memory and never released.

This is a big problem in my HTML page since I send the content of a file so after 3 or 4 calls the function does not have anought memory anymore and produce strange behaviour.

I use Safari 5.1.7 but the same code works fine with Chrome.

regards