Cara membuat Backgrond bisa di ganti-ganti oleh pengunjung

Ganti Background Disini !!

None Red Matrix Sharingan Sharingan 2 Death Note 1 L Lawliet 1 Hidden Leaf Cigar Paper Yu-Gi-Oh! Deidara Akatsuki Cloud Blue Matrix Green Matrix

Pasang Seperti Ini
Pengen buat background bisa di ganti-ganti oleh pengunjung seperti ini, tapi tanpa mengubah background aslinya,, itu sangat mudah .Tinggal copy HTML ini 
<div class="widget-content"><center><blink style="color: rgb(0, 102, 0);"><span style="font-weight: bold; color: rgb(0, 153, 0);">Ganti Background Disini !!</span></blink><br /><br />
<center><select onchange="document.body.style.background = this.value;this.style.background = this.value;" name="DADcbgc" title="Change Background Image" width="185" height="30"><option value="url() repeat center center fixed" />None<option value="url(http://cdn.indowebster.com/www42.indowebster.com/7dd2ae51f4b0cb792d3a435dc953f5cc_thumbnail.gif) repeat center center fixed" />Red Matrix<option value="url(http://yahyarezpectors.files.wordpress.com/2011/01/sharingan_wheel_by_neronin2.gif) repeat center center fixed" />Sharingan<option value="url(http://data0.eklablog.fr/hinata/mod_article214242.gif) repeat center center fixed" />Sharingan 2<option value="url(https://lh3.googleusercontent.com/-qSMieDwzZVc/TWmtPeoYmNI/AAAAAAAAAD8/nTJAxAeCKHI/s1600/death-note%25284%2529.jpg) repeat center center fixed" />Death Note 1<option value="url(http://i469.photobucket.com/albums/rr57/dragonknight0000039/ae/death20note20L.jpg) repeat center center fixed" />L Lawliet 1<option value="url(http://lh5.googleusercontent.com/_GaKwmMcf4N4/TZF_GOqPR_I/AAAAAAAAEsY/iGS-uTIVDs8/DADbg.JPG) repeat center center fixed" />Hidden Leaf<option value="url(https://lh3.googleusercontent.com/-cQzzWFap5AM/AAAAAAAAAAI/AAAAAAAAAC8/gfvQ7BxpGkQ/s250-c-k/photo.jpg) repeat center center fixed" />Cigar Paper
<option value="url(http://lh6.googleusercontent.com/_GaKwmMcf4N4/TZGC24bJuCI/AAAAAAAAEvg/O1mDH3LU91w/DADbg0.jpg) repeat center center fixed" />Yu-Gi-Oh!<option value="url(http://lh5.googleusercontent.com/_GaKwmMcf4N4/TZGDGbOqsnI/AAAAAAAAEwI/FWAbOOZu2go/DAD1.jpg) repeat center center fixed" />Deidara<option value="url(http://lh4.googleusercontent.com/_GaKwmMcf4N4/TZGC7eK9TtI/AAAAAAAAEvw/Ly5L0UA3D4s/DADcloud.gif) repeat center center fixed" />Akatsuki Cloud<option value="url(http://lh5.googleusercontent.com/_GaKwmMcf4N4/TZGC7UA67RI/AAAAAAAAEv0/ehJ-oez_akU/DADbluematrix.gif) repeat center center fixed" />Blue Matrix<option value="url(http://lh3.googleusercontent.com/_GaKwmMcf4N4/TZGC9O9ZNUI/AAAAAAAAEv8/Idjb8xIrw60/DADgreenmatrix.gif) repeat center center fixed" />Green Matrix</select></center></center></div><br/><center></center><br/><center><a href="http://twovoldemort.blogspot.com">Pasang Seperti Ini</a></center>

Setelah di copy , pastekan HTML tersebut di blog kalian. Login>Tata Letak>tambah gadget>HTML