var visibleClass = "is-visible";

//if sw == true, set visible, if false, set not visible
function toggleTrials(sw) {
    $$('.not-top-ten').each(function(trial) {
        if(!sw && trial.hasClassName(visibleClass)) {
            trial.removeClassName(visibleClass);
        } else if(sw && !trial.hasClassName(visibleClass)) {
            trial.addClassName(visibleClass);
        }        
    });
    $("expand-trials").toggle();
    $("collapse-trials").toggle();
}

function toggleTrialList() {
    Effect.toggle('trial-list', 'blind', {
            duration: 0.5,
            queue: { position: 'front', scope: 'trials', limit: 1 },
            afterFinish: function() {
                $('trial-list-disabler').toggle();
                $('trial-list-enabler').toggle();
            } });
}