$(document).ready(function() {	
	$(".thumb").each(function() {
		// options
		var distance = -6;
		var time = 300;
		var hideDelay = 50;

		var hideDelayTimer = null;

		// tracker
		var beingShown = false;
		var shown = false;
	
		var trigger = $('.trigger', this);
		var popup = $('.rollover', 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
				if (trigger.parent().parent().attr('id') == 'thumbs-right') {
					cssargs = {right: 0, top: 5, display: 'block'};
				} else {
					cssargs = {left: 0, top: 5, display: 'block'};
				}
				popup.css(cssargs)

				// (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);
		});
	});
});