var $start_left = 0;
var $end_left = 0;
var $current_left = 791;

var $scroll_pause = false;

function stop_scroll() {
   $scroll_pause = true;
}

function start_scroll() {
   $scroll_pause = false;
}

function initScroll() {
    setInterval('doScroll()', 20); 
}

function doScroll() {
   if($scroll_pause==false) {
        $start_left = $("div#scroll_container").width();
        $end_left = -1 * $("div#scroll_container_content").width();
             
        if($current_left < $end_left) { $current_left = $start_left; }
        else {$current_left = $current_left - 1;} 
            
        $("div#scroll_container_content").css({left:$current_left})
    }
 }