/*	
 *	jQuery dropmenu 1.1.4
 *	www.frebsite.nl
 *	Copyright (c) 2010 Fred Heusschen
 *	Licensed under the MIT license.
 *	http://www.opensource.org/licenses/mit-license.php
 */


(function( $ ) {
	$.fn.dropmenu = function( options ) {
		var isIE = $.browser.msie,
			isIE6 = isIE && $.browser.version <= 7,
			isIE7 = isIE && $.browser.version == 7,
			isIE8 = isIE && $.browser.version == 8;


		return this.each(function() {

			var opts = $.extend({}, $.fn.dropmenu.defaults, options),
				$menu = $(this),
				$topl = $menu.find('> li'),
				menuX = $menu.offset().left;

			if ( opts.maxWidth == 0 ) {
				opts.maxWidth = $('body').width() - menuX;
			}

			//	UL itself and all LI's
			$menu.css({
				display: 'block',
				listStyle: 'none'
			}).find("li").css({
				display: 'block',
				listStyle: 'none',
				position: 'relative',
				margin: 0,
				padding: 0
			});

			var css = {
				display: 'block',
				outline: 'none'
			};
			if ( opts.nbsp ) css['whiteSpace'] = 'nowrap';

			//	all A's and SPANs
			$menu.find('li > a, li > span').css(css);

			//	top-level LI's and top level A's and SPANs
			var _css = {
					"float" : 'left'
			};
			$topl.css(_css).find('> a, > span').addClass('toplevel').css(_css);

			//	all sub-ULs
			$menu.find('ul').css({
				display: 'none',
				position: 'absolute',
				margin: 0,
				padding: 0
			});


			

			//	first sub-UL and second, third, etc. sub-ULs
			$topl.find('> ul').css({
				left: 0,
				top: $topl.outerHeight()
			}).find('li > a, li > span').addClass('sublevel').parent().find('ul').css({
				top: 0
			}).data('subsub', true);

			//	IE fixes
			if ( isIE6 ) {
				$menu.find('ul').css({
					lineHeight: 0
				});
			}
			if ( isIE6 || isIE7 || isIE8 ) {
				$menu.find('ul a, ul span').css({
					zoom: 1
				});
			}


			$menu.find('a').click(function() {
				$('ul', $menu).hide();
				$('a, span', $menu).removeClass('hover');
			});

			$menu.find('li').hover(

			//	showing submenu


			function() {
				var listit = this,
					subnav = $.fn.dropmenu.getSubnav(listit),
					subcss = {
						zIndex: $.fn.dropmenu.zIndex++
					};

				$(listit).find('> a, > span').addClass('hover');

				if (!subnav ) return;
				if ( $(subnav).is(":animated") ) return;

				if ( $.data(subnav, 'subsub') ) {
					var distance = $(listit).outerWidth(),
						itemWidth = $(listit).offset().left + distance - menuX,
						position = (opts.maxWidth < itemWidth) ? "right" : "left";

					subcss[position] = distance;
				}
				$(subnav).css(subcss);
				$.data(subnav, 'stayOpen', true);

				switch ( opts.effect ) {
				case 'slide':
					$(subnav).slideDown(opts.speed);
					break;

				case 'fade':
					$(subnav).fadeIn(opts.speed);
					break;

				default:
					$(subnav).show();
					break;
				}

				//	hiding submenu
			}, function() {
				var listit = this,
					subnav = $.fn.dropmenu.getSubnav(listit);

				if (!subnav ) {
					$(listit).find('> a, > span').removeClass('hover');
					return;
				}

				$.data(subnav, 'stayOpen', false);
				setTimeout(function() {
					if ( $.data(subnav, 'stayOpen') ) return;
					$(listit).find('> a, > span').removeClass('hover');

					$('ul', subnav).hide();
					switch ( opts.effect ) {
					case 'slide':
						$(subnav).slideUp(opts.speed);
						break;

					case 'fade':
						$(subnav).fadeOut(opts.speed);
						break;

					default:
						$(subnav).hide();
						break;
					}

				}, opts.timeout);
			});
		});
	};

	$.fn.dropmenu.getSubnav = function( ele ) {
		if ( ele.nodeName.toLowerCase() == 'li' ) {
			var subnav = $('> ul', ele);
			return subnav.length ? subnav[0] : null;
		} else {
			return ele;
		}
	}

	$.fn.dropmenu.zIndex = 1000;
	$.fn.dropmenu.defaults = {
		effect: 'none',
		//	'slide', 'fade', or 'none'
		speed: 'normal',
		//	'normal', 'fast', 'slow', 100, 1000, etc
		timeout: 250,
		nbsp: false,
		maxWidth: 0
	};
})(jQuery);