Ganti Background Blog dari Postingan pake JavaScript

Pengen dong tiap kali lo posting, suasana blog termasuk Gambar Background sesuai sama isi postingan lo? ya se'enggak-nya sesuai sama gaya lo deh :D

Normalnya JavaScript buat ngeganti Gambar Background itu kaya gini kira-kira..

<script>

document.body.style.backgroundImage='url(http://blogdowallpaper.files.wordpress.com/2009/04/skate_boy_1024_blogdowallpaper.jpg)';

</script>

Kalo mau pake "Timer/Pewaktu"

biar nunggu dulu beberapa saat (misal 20 detik) baru Gambar Backgroundnya berubah..

<script>

setTimeout("document.body.style.backgroundImage='url(http://blogdowallpaper.files.wordpress.com/2009/04/skate_boy_1024_blogdowallpaper.jpg)'",20000);

</script>

Kalo pengen Gambar Backgroundnya "FullScreen"

biarpun gambar yang lo punya ukurannya kecil sekalipun tetep aja bakalan di tampilin se"layar penuh"..

<style type="text/css">

body {
 width: 100%;
-moz-background-size:100%;
     background-size:100%;
-moz-background-origin:content;
     background-origin:content;
 background-position:top center;
 background-attachment:fixed;
}

</style>


<script>

setTimeout("document.body.style.backgroundImage='url(http://blogdowallpaper.files.wordpress.com/2009/04/skate_boy_1024_blogdowallpaper.jpg)'",20000);


</script>

Warning

Kalo diBlog elo ada "Script Random Background Image"nya kemungkinan besar CSS buat nge-bikin FullScreen diatas bakalan "ketiban" (gak jalan)

Tapi elo gak usah nangis

Ganti aja "Script Random Background Image"nya jadi kaya gini..

<script type='text/javascript'>
var bg = [
"http://ALAMAT-GAMBAR.jpg",
"http://ALAMAT-GAMBAR.jpg",
"http://ALAMAT-GAMBAR.jpg"
];

function gantiBg(){
  var bgLeng = bg.length-1;
  var i = Math.floor(Math.random()*bgLeng);
  document.body.style.backgroundImage='url('+bg[i]+')';
}

gantiBg();
</script>

NB: script ini juga bisa ko dipasang di postingan, coba aja..

Kalo mau Gambar Backgroundnya "Gonta-ganti sendiri"

(misal Gonta-ganti sendiri tiap 20 detik), tinggal nambahin aja "Timer"

<script type='text/javascript'>
var bg = [
"http://ALAMAT-GAMBAR.jpg",
"http://ALAMAT-GAMBAR.jpg",
"http://ALAMAT-GAMBAR.jpg"
];

function gantiBg(){
  var bgLeng = bg.length-1;
  var i = Math.floor(Math.random()*bgLeng);
  document.body.style.backgroundImage='url('+bg[i]+')';

  setTimeout("gantiBg()",20000);
}

gantiBg();

</script>