// JavaScript Document


$.fn.popDownMenu = function() {
	// options
	var distance = 10;
	var time = 250;
	var hideDelay = 500;
	
	var hideDelayTimer = null;
	
	// tracker
	var beingShown = false;
	var shown = false;
	
	var trigger = $('.trigger', this);
	var popup = $('.more-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: 35,
				right: 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);
	});
}