preload_img        =  new Image();
preload_img.src    =  'image/top2.gif';
preload_img2       =  new Image();
preload_img.src2   =  'image/news2.gif';
preload_img3       =  new Image();
preload_img.src3   =  'image/what2.gif';
preload_img4       =  new Image();
preload_img.src4   =  'image/who2.gif';
preload_img5       =  new Image();
preload_img.src5   =  'image/release2.gif';
preload_img6       =  new Image();
preload_img.src6   =  'image/live2.gif';
preload_img7       =  new Image();
preload_img.src7   =  'image/link2.gif';
preload_img8       =  new Image();
preload_img.src8   =  'image/bbs2.gif';