Codigo para o visitantes trocarem a cor de fundo de seu blog

É muito facil é so ir en design ,adicionar o gadget ,java script e copie e cole o codigo abaixo:

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<h2 class="title">        CORES       </h2>

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<div style="text-align: center;">TROQUE AS CORES DO BLOG</div><br /><center>

<a href="#" onclick="javascript:document.body.style.backgroundColor='#ff0000'; document.body.style.backgroundImage='none';"><img src="http://4.bp.blogspot.com/_dsEG33PDaHw/S32TTX4H60I/AAAAAAAAAJU/qYc4BYZclgg/s200/body-rojo.png" /></a>

<a href="#" onclick="javascript:document.body.style.backgroundColor='#fff000'; document.body.style.backgroundImage='none';"><img src="http://2.bp.blogspot.com/_dsEG33PDaHw/S32TK7730eI/AAAAAAAAAIs/3v5O2GDrs1s/s200/body-amarillo.png" /></a>

<a href="#" onclick="javascript:document.body.style.backgroundColor='#04B404'; document.body.style.backgroundImage='none';"><img src="http://2.bp.blogspot.com/_dsEG33PDaHw/S32TTyfDggI/AAAAAAAAAJk/9x17-Ec7Dnw/s200/body-verde.png" /></a>

<a href="#" onclick="javascript:document.body.style.backgroundColor='#0080FF'; document.body.style.backgroundImage='none';"><img src="http://4.bp.blogspot.com/_dsEG33PDaHw/S32TLXeztWI/AAAAAAAAAI0/7hWfrfWsdKU/s200/body-azul.png" /></a>

<a href="#" onclick="javascript:document.body.style.backgroundColor='#CC00FF'; document.body.style.backgroundImage='none';"><img src="http://2.bp.blogspot.com/_dsEG33PDaHw/S32TMB5SOXI/AAAAAAAAAJE/PRMfKVBj6fM/s200/body-morado.png" /></a>

<a href="#" onclick="javascript:document.body.style.backgroundColor='#F781BE'; document.body.style.backgroundImage='none';"><img src="http://1.bp.blogspot.com/_dsEG33PDaHw/S32TTl7vW9I/AAAAAAAAAJc/GHdXgYyF4Ro/s200/body-rosa.png" /></a>

<a href="#" onclick="javascript:document.body.style.backgroundColor='#000000'; document.body.style.backgroundImage='none';"><img src="http://2.bp.blogspot.com/_dsEG33PDaHw/S32TMY3FA9I/AAAAAAAAAJM/6Hx0CAagVOQ/s200/body-negro.png" /></a>

<a href="#" onclick="javascript:document.body.style.backgroundColor='#FFFFFF'; document.body.style.backgroundImage='none';"><img src="http://2.bp.blogspot.com/_dsEG33PDaHw/S32TLuZ0f1I/AAAAAAAAAI8/r1AHB4GpoPQ/s200/body-blanco.png" /></a>

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Fica assim: