import netscape.javascript.*; // for JSObject
int count;
int bg = 255;
JSObject window; // the window

void setup()
{
  size(200, 200);
  background(bg);
  count = 5;
  smooth();
  
  window = JSObject.getWindow(this);
}

public int toggleBG()
{
  if(bg == 255)
    bg = 0;
  else
    bg = 255;
    
  window.eval( "message(\" bg toggled to " + bg + " \")" );
  return bg;
}

public void setCount(int c)
{
  count = c;
  window.eval( "message(\" count set to " + count + " \")" );
}

public void setColour(int c)
{
  bg = c;
  window.eval( "message(\" bg set to " + bg + " \")" );
}

void draw()
{
  background(bg);
  
  randomSeed(0);
  for (int i = 0 ; i < count; i++)
  {
    ellipse(random(0, width), random(0, height), 5, 5);
  }
}

public int incrementIt()
{
  count++;
  window.eval( "message(\" incremented \")" );
  return count;
}

public int decrementIt()
{
  count--;
  window.eval( "message(\" decremented \")" );
  return count;
}

public void keyPressed()
{
  window.eval( "message(\"" + key + "\")" );
}