Saltar al contenido
http://srobbin.com/jquery-plugins/backstretch/
http://paulmason.name/item/full-screen-background-image-pure-css-code
http://webintenta.com/css-full-screen-background-image.html
http://css-tricks.com/examples/FullPageBackgroundImage/progressive.php
http://css-tricks.com/perfect-full-page-background-image/