function randive() {} ; bg = new randive () ; n = 0
     
  bg[n++] = "/assets/images/rand_bks/bk01"
  bg[n++] = "/assets/images/rand_bks/bk02"
  bg[n++] = "/assets/images/rand_bks/bk03"
  bg[n++] = "/assets/images/rand_bks/bk04"
  bg[n++] = "/assets/images/rand_bks/bk05"
  bg[n++] = "/assets/images/rand_bks/bk06"
  bg[n++] = "/assets/images/rand_bks/bk07"
  bg[n++] = "/assets/images/rand_bks/bk08"
 ' bg[n++] = "/assets/images/rand_bks/bk09" '
  bg[n++] = "/assets/images/rand_bks/bk10"
  bg[n++] = "/assets/images/rand_bks/bk11"
  bg[n++] = "/assets/images/rand_bks/bk12"
  bg[n++] = "/assets/images/rand_bks/bk13"
  bg[n++] = "/assets/images/rand_bks/bk14"
  bg[n++] = "/assets/images/rand_bks/bk15"
  bg[n++] = "/assets/images/rand_bks/bk16"
  bg[n++] = "/assets/images/rand_bks/bk17"
  bg[n++] = "/assets/images/rand_bks/bk18"
  
  rnd = Math.floor(Math.random() * n) ; 
       
    
  tmpd = "\<STYLE type='text\/css' media\='screen'\>\<\!--body\{background-image:url\('" + bg[rnd] + ".jpg'\) ; background-color:#D3DEE3;\}--\>\<\/STYLE\>"