function attach_calendar_events() {
	$('.attach_popup').each(function () {
		// options
		var distance = 10;
		var time = 250;
		var hideDelay = 100;

		var hideDelayTimer = null;

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

		var trigger = $(this);
		var popup = $('.events .outer', 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: 4, // 20
					left: -60, // -76
					display: 'block' // brings the popup back in to view
				})

				// (we're using chaining on the popup) now animate it's opacity and position
				.animate({
					bottom: '+=' + 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({
					bottom: '-=' + 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);
		});
	});
}

function json_decode (str_json)
{
	var json = this.window.JSON;
	if (typeof json === 'object' && typeof json.parse === 'function') {
		try {
			return json.parse(str_json);
		} catch (err) {
			if (!(err instanceof SyntaxError)) {
				throw new Error('Unexpected error type');
			}
			this.php_js = this.php_js || {};
			this.php_js.last_error_json = 4; 
			return null;
		}
	}

	var cx = /[\u0000\u00ad\u0600-\u0604\u070f\u17b4\u17b5\u200c-\u200f\u2028-\u202f\u2060-\u206f\ufeff\ufff0-\uffff]/g;
	var j;
	var text = str_json;

	cx.lastIndex = 0;
	if (cx.test(text)) {
		text = text.replace(cx, function (a) {
			return '\\u' + ('0000' + a.charCodeAt(0).toString(16)).slice(-4);
		});
	}

	if ((/^[\],:{}\s]*$/).
	test(text.replace(/\\(?:["\\\/bfnrt]|u[0-9a-fA-F]{4})/g, '@').
	replace(/"[^"\\\n\r]*"|true|false|null|-?\d+(?:\.\d*)?(?:[eE][+\-]?\d+)?/g, ']').
	replace(/(?:^|:|,)(?:\s*\[)+/g, ''))) {

		j = eval('(' + text + ')');

		return j;
	}

	this.php_js = this.php_js || {};
	this.php_js.last_error_json = 4;
	return null;
}