Graphics for ChessApplet

Hi Dears
I am developing chess game written as an JavaApplet.
Using Borland JBuilder 9 Personal Edition.
I use the following Code
void this_mouseDragg ed(MouseEvent e)
{
}
class Chess_this_mous eMotionAdapter extends
java.awt.event. MouseMotionAdap ter
{
Chess adaptee ;
Chess_this_mous eMotionAdapter ( Chess adaptee )
{
this.adaptee = adaptee ;
}
public void mouseDragged ( MouseEvent e )
{
adaptee.this_mo useDragged ( e ) ;
}
}
But it seems that it still fire when the mouse button is released.
The Applet are on the following URL


Verry Thankfull for Tips or Advice.
Sincerely
Urban Avierfj?
Gotland, Sweden