$(document).ready(function () {
    // speed in milliseconds
    var scrollSpeed = 70;
 
    // set the direction
    var direction = 'h';
 
    // set the default position
    var current = 0;
 
    function bgscroll(){
 
        // 1 pixel row at a time
        current -= 1;
    
        // move the background with backgrond-position css properties
        $('div.clouds').css("backgroundPosition", (direction == 'h') ? current+"px 0" : "0 " + current+"px");
    
    }
 
    //Calls the scrolling function repeatedly
    var init = setInterval("bgscroll()", scrollSpeed);  
});