Botones para cambiar el color del fondo del Blog

Hay veces en las que el blog no es de gusto de todos, por el diseño o por los colores, para ello, se puede añadir la opción de cambiar fácilmente el color de fondo mediante un sencillo script.
Este script tiene la particularidad de permitir al lector cambiar el color de fondo del blog a su preferencia seleccionando el color y presionando en él.










Primero, vamos a ''Diseño | Elementos de la página'', en donde añades un gadget ''HTML/Javascript'':


En él añade el siguiente código:

<td><span onclick="javascript:document.body.style.backgroundColor='#f6f4c1'; document.body.style.backgroundImage='none';"><img src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhw1niZbkCBk6ZgCKfPcwTkcAprYXjbNRnDen6TDbbN_Xiy4drWaqKZKDB1BPo4DySRJSVe0jhZJEibMBuY8VjHQlty2E1G9G00VpWquZCmwlUuh4RM7cvpyUpBuFHxULADeJ7pSM4p1XjJ/s320/blfondoamarillo.png" style="cursor: pointer ! important;" border="1" /></span></td>
<td><span onclick="javascript:document.body.style.backgroundColor='#c1c9f6'; document.body.style.backgroundImage='none';"><img src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjem06z-xPfwSAkJLL7Q1pBzuvnH7fHoPuh8V6NE4KLpHF1hX2Tq5O1VqHCzyEAGTmc9O04kMcF90WIQ7OL5ZpY5pTQLhR3mUaMwd56mnSzQ2ISPSJ1uxSv2XMnyTM9uOiz_AfVVSOjMSEW/s320/blfondoazul.png" style="cursor: pointer ! important;" border="1" /></span></td>
<td><span onclick="javascript:document.body.style.backgroundColor='#f6eac1'; document.body.style.backgroundImage='none';"><img src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgc3FHuBYCLqa6MvM1xkUMAChxUvw1FMNCiCJbd0FsAoElIZVPxwZkYUq3K9PR_raUvlozrGCjoKv1Tpgw0aP2cnzLas8zm8i9fCcX4M19ahOg-rdvLGuse4Kmxiyvu2PjpFpjp0kafWFOV/s320/blfondonaranja.png" style="cursor: pointer ! important;" border="1" /></span></td>
<td><span onclick="javascript:document.body.style.backgroundColor='#cccccc'; document.body.style.backgroundImage='none';"><img src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg6zPYezOG_OM06Z-DmAc4q69_ntzIFc8XUDy_azmNmP1TNxCG-VxTikeIlAmr3jON4h3mPzUiMD2oHV9H-acpgCVYr1fXCBgAaLR5qUt1cS0O1X46HCfFFLmEkS_HS6HvVa1fdEtN9PKNT/s320/blfondogris.png" style="cursor: pointer ! important;" border="1" /></span></td>
<td><span onclick="javascript:document.body.style.backgroundColor='#ffffff'; document.body.style.backgroundImage='none';"><img src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiUDBZbG_WVdm6l3jjcJiV6S6hmRQQV1xmr45hZl_1t_6pDDvyzUBwiVRWxQRFpYGu5_6W-AqdjJA0GxPITMwyCfPDKqIHZXyUh2Hkl3SjMQ6nqTqrVwQRXlhaZLnj56jf0ktVL2Yi-iRo5/s400/blfondoblanco.png" style="cursor: pointer ! important;" border="1" /></span></td>
<td><span onclick="javascript:document.body.style.backgroundColor='#e4dbb9'; document.body.style.backgroundImage='none';"><img src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiCBmtWDprwYT3GoJOLxKwsK82Uhbx5r_KvQK8or_hafd_DCSVQjwFqs-GnjvO3vpDnLtS2fugSptnMwWkpXKPbYJ7QvbgqjTG70X8ga3dvve-xY_N9PL_zFIfFyZlB74qZGhjPCP0wj1pv/s320/blfondomarron.png" style="cursor: pointer ! important;" border="1" /></span></td>
<tr>
<td><span onclick="javascript:document.body.style.backgroundColor='#e6f9e6'; document.body.style.backgroundImage='none';"><img src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjdMKOmeIefUvvidc9BWqGgAtFi2YDP8p7_eqQLJlmThFWJ_9r9RZjeieDZyQYcU1EWmsXjfuVZQRe-ONKbdaHDrEEAanwphBteREoS2AcALE-USG-RYGx8RrxmwZQo0dcUeqG98MyQ5_ZU/s320/blfondoverde.png" style="cursor: pointer ! important;" border="1" /></span></td>
<td><span onclick="javascript:document.body.style.backgroundColor='#f6c2c1'; document.body.style.backgroundImage='none';"><img src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEientc-TILzqI-AjPZFLEsAJA7i1PqCLefahcL9mP-Tst3QphGzR-CmNHMX7JYZiSsmDeN5M2fqEhx7fPWi3a-PFldudJhByVtEmY1E_WEavlmLVhdZYtRM7uh6lLmHR6FMvXiaWAd9uHTH/s320/blfondorojo.png" style="cursor: pointer ! important;" border="1" /></span></td>
<td><span onclick="javascript:document.body.style.backgroundColor='#f9e6e9'; document.body.style.backgroundImage='none';"><img src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhouRmg5N-DZDLtBDak9ACpPbsG3KFghUpzT3c8iKaCVaAsSrz7ltH-AUSWc-dAn4mV3di3EQayfN_HfX5QJOm3OWL2vODXVeL7SOix_bqLNWG3uPaNKpN_fPQ-FsqQeRchQ5fW3OWPWnC5/s320/blfondorosa.png" style="cursor: pointer ! important;" border="1" /></span></td>
<td><span onclick="javascript:document.body.style.backgroundColor='#d1b9e4'; document.body.style.backgroundImage='none';"><img src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgwcR2N-5K-B3tVI7kYyJEEUjUtWKzGCQ5Y3EuYyZ5tEnBYggpVux4WFTcN2XFaN2EJ7OoZQaqrxcDQstWaK_Tim6oYatSESz6-Je-i6dVlNAIgILvoGZa-cIL_WlI9ucK3Ba9PTkgfv2DV/s320/blfondomorado.png" style="cursor: pointer ! important;" border="1" /></span></td>
<td><span onclick="javascript:document.body.style.backgroundColor='#000000'; document.body.style.backgroundImage='none';"><img src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhV__MGJjqvIVolqLNt70spuLOYSC-iqp2wy157MGzVdHJ4jgPSL4SEf5I4QiZb9JDlYH-incGP8AMdQ9B-fLnbs88Gj-G11ay1fYm41TXPgKYXzQE0mSFB1eJt9Tj0bD8QaV656hrfxofU/s320/blfondonegro.png" style="cursor: pointer ! important;" border="1" /></span></td>
<td><span onclick="javascript:document.body.style.backgroundColor='#ECEEF3'; document.body.style.backgroundImage='none';"><img src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjevrzcYVOTOkiIyk1DHf4uqz831Z73mY6_a3sNG9vfH7bCqKwNchSxj6-VUZzTY3vx6k-BbMahfFeKugtbThCPRiVTZIYi9LePuQYi6UabyxYZe5nQF1hWCN9YJUwq5d6A_N_KadpyfcQW/s400/blfondoazul2.png" style="cursor: pointer ! important;" border="1" /></span></td></tr>

 Guardas los cambios y listo: