buttonon=new Image(150,50);
  buttonon.src="about1on.gif";
  buttonoff=new Image(150,50);
  buttonoff.src="about1off.gif";
  buttonon2=new Image(150,50);
  buttonon2.src="contacton.gif";
  buttonoff2=new Image(150,50);
  buttonoff2.src="contactoff.gif";
  buttonon3=new Image(150,50);
  buttonon3.src="gigson.gif";
  buttonoff3=new Image(150,50);
  buttonoff3.src="gigsoff.gif";