/*
 * superfish v1.4.8 - jquery menu widget
 * copyright (c) 2008 joel birch
 *
 * dual licensed under the mit and gpl licenses:
 * 	http://www.opensource.org/licenses/mit-license.php
 * 	http://www.gnu.org/licenses/gpl.html
 *  http://www.yaoyingying.com/css/jquery/superfish/#getting-started  [china]
 *
 * changelog: http://users.tpg.com.au/j_birch/plugins/superfish/changelog.txt
 */

;(function($){
	$.fn.superfish = function(op){

		var sf = $.fn.superfish,
			c = sf.c,
			$arrow = $(['<span class="',c.arrowclass,'"> &#187;</span>'].join('')),
			over = function(){
				var $$ = $(this), menu = getmenu($$);
				cleartimeout(menu.sftimer);
				$$.showsuperfishul().siblings().hidesuperfishul();
			},
			out = function(){
				var $$ = $(this), menu = getmenu($$), o = sf.op;
				cleartimeout(menu.sftimer);
				menu.sftimer=settimeout(function(){
					o.retainpath=($.inarray($$[0],o.$path)>-1);
					$$.hidesuperfishul();
					if (o.$path.length && $$.parents(['li.',o.hoverclass].join('')).length<1){over.call(o.$path);}
				},o.delay);	
			},
			getmenu = function($menu){
				var menu = $menu.parents(['ul.',c.menuclass,':first'].join(''))[0];
				sf.op = sf.o[menu.serial];
				return menu;
			},
			addarrow = function($a){ $a.addclass(c.anchorclass).append($arrow.clone()); };
			
		return this.each(function() {
			var s = this.serial = sf.o.length;
			var o = $.extend({},sf.defaults,op);
			o.$path = $('li.'+o.pathclass,this).slice(0,o.pathlevels).each(function(){
				$(this).addclass([o.hoverclass,c.bcclass].join(' '))
					.filter('li:has(ul)').removeclass(o.pathclass);
			});
			sf.o[s] = sf.op = o;
			
			$('li:has(ul)',this)[($.fn.hoverintent && !o.disablehi) ? 'hoverintent' : 'hover'](over,out).each(function() {
				if (o.autoarrows) addarrow( $('>a:first-child',this) );
			})
			.not('.'+c.bcclass)
				.hidesuperfishul();
			
			var $a = $('a',this);
			$a.each(function(i){
				var $li = $a.eq(i).parents('li');
				$a.eq(i).focus(function(){over.call($li);}).blur(function(){out.call($li);});
			});
			o.oninit.call(this);
			
		}).each(function() {
			var menuclasses = [c.menuclass];
			if (sf.op.dropshadows  && !($.browser.msie && $.browser.version < 7)) menuclasses.push(c.shadowclass);
			$(this).addclass(menuclasses.join(' '));
		});
	};

	var sf = $.fn.superfish;
	sf.o = [];
	sf.op = {};
	sf.ie7fix = function(){
		var o = sf.op;
		if ($.browser.msie && $.browser.version > 6 && o.dropshadows && o.animation.opacity!=undefined)
			this.toggleclass(sf.c.shadowclass+'-off');
		};
	sf.c = {
		bcclass     : 'sf-breadcrumb',
		menuclass   : 'sf-js-enabled',
		anchorclass : 'sf-with-ul',
		arrowclass  : 'sf-sub-indicator',
		shadowclass : 'sf-shadow'
	};
	sf.defaults = {
		hoverclass	: 'sfhover',
		pathclass	: 'overidethistouse',
		pathlevels	: 1,
		delay		: 350,
		animation	: {opacity:'show'},
		speed		: 'normal',
		autoarrows	: true,
		dropshadows : true,
		disablehi	: false,		// true disables hoverintent detection
		oninit		: function(){}, // callback functions
		onbeforeshow: function(){},
		onshow		: function(){},
		onhide		: function(){}
	};
	$.fn.extend({
		hidesuperfishul : function(){
			var o = sf.op,
				not = (o.retainpath===true) ? o.$path : '';
			o.retainpath = false;
			var $ul = $(['li.',o.hoverclass].join(''),this).add(this).not(not).removeclass(o.hoverclass)
					.find('>ul').hide().css('visibility','hidden');
			o.onhide.call($ul);
			return this;
		},
		showsuperfishul : function(){
			var o = sf.op,
				sh = sf.c.shadowclass+'-off',
				$ul = this.addclass(o.hoverclass)
					.find('>ul:hidden').css('visibility','visible');
			sf.ie7fix.call($ul);
			o.onbeforeshow.call($ul);
			$ul.animate(o.animation,o.speed,function(){ sf.ie7fix.call($ul); o.onshow.call($ul); });
			return this;
		}
	});

})(jquery);