$(function() {
    $('.linkitem').each(function() {
        // options
        var distance = 10;
        var time = 250;
        var hideDelay = 200;

        var hideDelayTimer = null;

        // tracker
        var beingShown = false;
        var shown = false;

        var trigger = $('.trigger', this);
        var popup = $('.popup', this).css('opacity', 0);

        // set the mouseover and mouseout on both element
        $([trigger.get(0), popup.get(0)]).mouseover(function() {
            // stops the hide event if we move from the trigger to the popup element
            if (hideDelayTimer) clearTimeout(hideDelayTimer);

            // don't trigger the animation again if we're being shown, or already visible
            if (beingShown || shown) {
                return;
            } else {

                beingShown = true;

                // reset position of popup box
                popup.css({
                    top: 10,
                    left: 0,
                    display: 'block' // brings the popup back in to view
                })

                // (we're using chaining on the popup) now animate it's opacity and position
.animate({
    top: '-=' + distance + 'px',
    opacity: 1
}, time, 'swing', function() {
    // once the animation is complete, set the tracker variables
    beingShown = false;
    shown = true;
});
            }
        }).mouseout(function() {
            // reset the timer if we get fired again - avoids double animations
            if (hideDelayTimer) clearTimeout(hideDelayTimer);

            // store the timer so that it can be cleared in the mouseover if required
            hideDelayTimer = setTimeout(function() {
                hideDelayTimer = null;
                popup.animate({
                    top: '-=' + distance + 'px',
                    opacity: 0
                }, time, 'swing', function() {
                    // once the animate is complete, set the tracker variables
                    shown = false;
                    // hide the popup entirely after the effect (opacity alone doesn't do the job)
                    popup.css('display', 'none');
                });
            }, hideDelay);
        });
    });
});