public void keyReleased(KeyEvent evt)
			{
			      int key = evt.getKeyCode();
			      if(key == keyup)moveup = false;
			      if(key == keydown)movedown = false;
			      if(key == keyleft)moveleft = false;
			      if(key == keyright)moveright = false;
			      if(key == KeyEvent.VK_SHIFT)sprintkey = false;			      
			}