/**
 * main.js
 * http://www.codrops.com
 *
 * licensed under the mit license.
 * http://www.opensource.org/licenses/mit-license.php
 * 
 * copyright 2014, codrops
 * http://www.codrops.com
 */
(function() {

	var bodyel = document.body,
		content = document.queryselector( '.content-wrap' ),
		openbtn = document.getelementbyid( 'open-button' ),
		closebtn = document.getelementbyid( 'close-button' ),
		isopen = false;

	function init() {
		initevents();
	}

	function initevents() {
		openbtn.addeventlistener( 'click', togglemenu );
		if( closebtn ) {
			closebtn.addeventlistener( 'click', togglemenu );
		}

		// close the menu element if the target it´s not the menu element or one of its descendants..
		content.addeventlistener( 'click', function(ev) {
			var target = ev.target;
			if( isopen && target !== openbtn ) {
				togglemenu();
			}
		} );
	}

	function togglemenu() {
		if( isopen ) {
			classie.remove( bodyel, 'show-menu' );
		}
		else {
			classie.add( bodyel, 'show-menu' );
		}
		isopen = !isopen;
	}

	init();

})();