preloading(
  "http://www.it-gears.com/images/gbnavbut_01.png", 
  "http://www.it-gears.com/images/gbnavbutsel_01.png", 
  "http://www.it-gears.com/images/gbnavbut_02.png", 
  "http://www.it-gears.com/images/gbnavbutsel_02.png", 
  "http://www.it-gears.com/images/gbnavbut_03.png", 
  "http://www.it-gears.com/images/gbnavbutsel_03.png", 
  "http://www.it-gears.com/images/gbnavbut_04.png", 
  "http://www.it-gears.com/images/gbnavbutsel_04.png", 
  "http://www.it-gears.com/images/gbnavbut_05.png", 
  "http://www.it-gears.com/images/gbnavbutsel_05.png", 
  "http://www.it-gears.com/images/gbnavbut_06.png", 
  "http://www.it-gears.com/images/gbnavbutsel_06.png", 
  "http://www.it-gears.com/images/gbnavbut_07.png", 
  "http://www.it-gears.com/images/gbnavbutsel_07.png"
);