// Setup background

var bgImages = new Array(


"images/1.jpg",
"images/2.jpg",
"images/3.jpg",
"images/4.jpg",
"images/5.jpg",
"images/6.jpg"
);


// Apply background

jQuery('body').css('background-image', 'url(' + bgImages[Math.round(Math.random()* (bgImages.length - 1))] + ')');