$(document).ready(function() {
  var randomImages = ['footer','footer2', 'footer3','footer4','footer5'];
  var rndNum = Math.floor(Math.random() * randomImages.length);
  $("#container").css({ background: "url(http://www.signatureconcretedesign.com/wp-content/themes/scd2011/images/" + randomImages[rndNum] + ".jpg) bottom no-repeat #EFE8D7" });
});

$(document).ready(function() {
  var randomImages = ['r-scd1','r-scd2', 'r-scd3','r-scd4','r-scd5'];
  var rndNum = Math.floor(Math.random() * randomImages.length);
  $("#header").css({ background: "url(http://www.signatureconcretedesign.com/wp-content/themes/scd2011/images/" + randomImages[rndNum] + ".jpg) top no-repeat" });
});

$(document).ready(function() {
  var randomImages = ['r-sld1','r-sld2', 'r-sld3','r-sld4','r-sld5'];
  var rndNum = Math.floor(Math.random() * randomImages.length);
  $(".page-id-451 #header, .page-id-234 #header, .parent-pageid-234 #header").css({ background: "url(http://www.signatureconcretedesign.com/wp-content/themes/scd2011/images/" + randomImages[rndNum] + ".jpg) top no-repeat" });
});