$(".womens-lifestyle").css("background", "none");
$(".mens-lifestyle").css("background", "none");

$(document).ready(function() {
  var random_number = Math.floor(Math.random()*3)+1;
  $(".womens-lifestyle").css("background", "url(/images/splash/womens_lifestyle/"+random_number+".jpg) no-repeat");
  $(".mens-lifestyle").css("background", "url(/images/splash/mens_lifestyle/"+random_number+".jpg) no-repeat");
});