// main vertical scroll 
$("#feature-main-vertical").scrollable({ 
 
    // basic settings 
    vertical: true, 
    size: 1, 
    clickable: false, 
 
    // up/down keys will always control this scrollable 
    keyboard: 'static', 
 
    // assign left/right keys to the actively viewed scrollable 
    onSeek: function(event, i) { 
        horizontal.scrollable(i).focus(); 
    } 
 
// main navigator (thumbnail images) 
}).navigator("#feature-list-main-navi"); 
 
// horizontal scrollables. each one is circular and has its own navigator instance 
var horizontal = $(".scrollable").scrollable({size: 1}).circular().navigator(".navi"); 
 
 
// when page loads setup keyboard focus on the first horzontal scrollable 
horizontal.eq(0).scrollable().focus();