var body = document.body; body.className += " u-body u-xl-mode"; body.style.cssText += " "; var dataBg = ''; if (dataBg) { body.setAttribute('data-bg', dataBg); } CONCRETE 255828 60/120 CONCRETE WHITE 255830 60/120 DECOR BLUE BLOOM 255829 60/120 DECOR BLUE DRAGONFLY 391