//zwp
(function(a){
	a.fn.menu=function(option){
	var style={
		type:0,//0--无滑块；1--有滑块
		defaultindex:0,//子级索引值
		height:5,//滑块高度
		background:"red",//滑块背景色
		bottom:0,//滑块距离导航底部距离
		animateease:"linear",//滑块的运动轨迹
		time:500,//滑块的运动时间
		zindex:-1,//滑块的层级
		margin:0,//滑块左右间距
		antcomplete:true,//默认滑块动画完成后调函数
		startfun:null,//滑块进入方法
		endfun:null//滑块离开方法
	},
	b=$.extend({},style,option),
	fun=b.type,
	h=b.height,
	bg=b.background,
	btm=b.bottom,
	e=b.animateease,
	t=b.time,
	i=b.zindex,
	m=b.margin,
	muiconw=0,
	pt=0,
	muiconwh=0,
	pth=0,
	$this=this,
	d=a(this),
	p=parseint(b.defaultindex),
	cl=b.antcomplete,
	f=function(){
		a.isfunction(b.startfun) && b.startfun(p);
	},
	r=function(){
		a.isfunction(b.endfun) && b.endfun(p);
	},
	$children=$this.children(),
	lg=$this.children().length,
	ddhv=null,
	ddat=null;
	if(lg>0){
		ddhv=$children[0].tagname+".hover";
		ddat=$children[0].tagname+".active";	
	}
	switch(fun)
	{
		case 1:
			$this.parent().css({"position":"relative","z-index":9});
			$this.parent().append('<div class="menuicon" style="position:absolute"><div></div></div>');
			$this.siblings(".menuicon").css({
				"height":h,
				"bottom":btm,
				"z-index":i
			});
			$this.siblings(".menuicon").find("div").css({
				"height":h,
				"background":bg,
				"marginleft":m,
				"marginright":m
			});
			$children.each(function(index){
				if($(this).hasclass("hover")){
					muiconwh=$(this).outerwidth();
					pth=$(this).position().left;
					$this.siblings(".menuicon").stop(true,false).animate({
						"width":muiconwh,
						"left":pth,
					},{"duration":t,"easing":e});   
				}
				$(this).hover(function(){
					p=$(this).index();
					muiconw=$(this).outerwidth();
					pt=$(this).position().left;
					switch(cl)
					{
						case true:
							$this.siblings(".menuicon").stop(true,false).animate({
								"width":muiconw,
								"left":pt,
							},t,e,f);
							break;
						case false:
							$this.siblings(".menuicon").stop(true,false).animate({
								"width":muiconw,
								"left":pt,
							},{"duration":t,"easing":e});
							f();
							break;
					};
					$this.find(ddhv).addclass("active").removeclass("hover");
					$(this).addclass("hover");
				},function(){
					r();
					$(this).removeclass("hover");
					$this.find(ddat).addclass("hover").removeclass("active");
				});
			});	
			$children.hover(function(){},function(){
				$this.siblings(".menuicon").stop(true,false).animate({
					"width":muiconwh,
					"left":pth,
				},{"duration":t,"easing":e});
			});
			break;
		case 0:
			$children.each(function(index){
				$(this).hover(function(){
					p=$(this).index();
					f();
					$this.find(ddhv).addclass("active").removeclass("hover");
					$(this).addclass("hover");
					
				},function(){
					r();
					$(this).removeclass("hover");
					$this.find(ddat).addclass("hover").removeclass("active");
				});
			});	
			break;
	}
}})(jquery),
jquery.easing.jswing = jquery.easing.swing,
jquery.extend(jquery.easing, {
	def: "easeoutquad",
	swing: function(a, b, c, d, e) {
		return jquery.easing[jquery.easing.def](a, b, c, d, e)
	},
	easeinquad: function(a, b, c, d, e) {
		return d * (b /= e) * b + c
	},
	easeoutquad: function(a, b, c, d, e) {
		return - d * (b /= e) * (b - 2) + c
	},
	easeinoutquad: function(a, b, c, d, e) {
		return 1 > (b /= e / 2) ? d / 2 * b * b + c: -d / 2 * (--b * (b - 2) - 1) + c
	},
	easeincubic: function(a, b, c, d, e) {
		return d * (b /= e) * b * b + c
	},
	easeoutcubic: function(a, b, c, d, e) {
		return d * ((b = b / e - 1) * b * b + 1) + c
	},
	easeinoutcubic: function(a, b, c, d, e) {
		return 1 > (b /= e / 2) ? d / 2 * b * b * b + c: d / 2 * ((b -= 2) * b * b + 2) + c
	},
	easeinquart: function(a, b, c, d, e) {
		return d * (b /= e) * b * b * b + c
	},
	easeoutquart: function(a, b, c, d, e) {
		return - d * ((b = b / e - 1) * b * b * b - 1) + c
	},
	easeinoutquart: function(a, b, c, d, e) {
		return 1 > (b /= e / 2) ? d / 2 * b * b * b * b + c: -d / 2 * ((b -= 2) * b * b * b - 2) + c
	},
	easeinquint: function(a, b, c, d, e) {
		return d * (b /= e) * b * b * b * b + c
	},
	easeoutquint: function(a, b, c, d, e) {
		return d * ((b = b / e - 1) * b * b * b * b + 1) + c
	},
	easeinoutquint: function(a, b, c, d, e) {
		return 1 > (b /= e / 2) ? d / 2 * b * b * b * b * b + c: d / 2 * ((b -= 2) * b * b * b * b + 2) + c
	},
	easeinsine: function(a, b, c, d, e) {
		return - d * math.cos(b / e * (math.pi / 2)) + d + c
	},
	easeoutsine: function(a, b, c, d, e) {
		return d * math.sin(b / e * (math.pi / 2)) + c
	},
	easeinoutsine: function(a, b, c, d, e) {
		return - d / 2 * (math.cos(math.pi * b / e) - 1) + c
	},
	easeinexpo: function(a, b, c, d, e) {
		return 0 == b ? c: d * math.pow(2, 10 * (b / e - 1)) + c
	},
	easeoutexpo: function(a, b, c, d, e) {
		return b == e ? c + d: d * ( - math.pow(2, -10 * b / e) + 1) + c
	},
	easeinoutexpo: function(a, b, c, d, e) {
		return 0 == b ? c: b == e ? c + d: 1 > (b /= e / 2) ? d / 2 * math.pow(2, 10 * (b - 1)) + c: d / 2 * ( - math.pow(2, -10 * --b) + 2) + c
	},
	easeincirc: function(a, b, c, d, e) {
		return - d * (math.sqrt(1 - (b /= e) * b) - 1) + c
	},
	easeoutcirc: function(a, b, c, d, e) {
		return d * math.sqrt(1 - (b = b / e - 1) * b) + c
	},
	easeinoutcirc: function(a, b, c, d, e) {
		return 1 > (b /= e / 2) ? -d / 2 * (math.sqrt(1 - b * b) - 1) + c: d / 2 * (math.sqrt(1 - (b -= 2) * b) + 1) + c
	},
	easeinelastic: function(a, b, c, d, e) {
		var f = 1.70158,
		g = 0,
		h = d;
		if (0 == b) return c;
		if (1 == (b /= e)) return c + d;
		if (g || (g = .3 * e), math.abs(d) > h) {
			h = d;
			var f = g / 4
		} else var f = g / (2 * math.pi) * math.asin(d / h);
		return - (h * math.pow(2, 10 * (b -= 1)) * math.sin((b * e - f) * 2 * math.pi / g)) + c
	},
	easeoutelastic: function(a, b, c, d, e) {
		var f = 1.70158,
		g = 0,
		h = d;
		if (0 == b) return c;
		if (1 == (b /= e)) return c + d;
		if (g || (g = .3 * e), math.abs(d) > h) {
			h = d;
			var f = g / 4
		} else var f = g / (2 * math.pi) * math.asin(d / h);
		return h * math.pow(2, -10 * b) * math.sin((b * e - f) * 2 * math.pi / g) + d + c
	},
	easeinoutelastic: function(a, b, c, d, e) {
		var f = 1.70158,
		g = 0,
		h = d;
		if (0 == b) return c;
		if (2 == (b /= e / 2)) return c + d;
		if (g || (g = e * .3 * 1.5), math.abs(d) > h) {
			h = d;
			var f = g / 4
		} else var f = g / (2 * math.pi) * math.asin(d / h);
		return 1 > b ? -.5 * h * math.pow(2, 10 * (b -= 1)) * math.sin((b * e - f) * 2 * math.pi / g) + c: .5 * h * math.pow(2, -10 * (b -= 1)) * math.sin((b * e - f) * 2 * math.pi / g) + d + c
	},
	easeinback: function(a, b, c, d, e, f) {
		return void 0 == f && (f = 1.70158),
		d * (b /= e) * b * ((f + 1) * b - f) + c
	},
	easeoutback: function(a, b, c, d, e, f) {
		return void 0 == f && (f = 1.70158),
		d * ((b = b / e - 1) * b * ((f + 1) * b + f) + 1) + c
	},
	easeinoutback: function(a, b, c, d, e, f) {
		return void 0 == f && (f = 1.70158),
		1 > (b /= e / 2) ? d / 2 * b * b * (((f *= 1.525) + 1) * b - f) + c: d / 2 * ((b -= 2) * b * (((f *= 1.525) + 1) * b + f) + 2) + c
	},
	easeinbounce: function(a, b, c, d, e) {
		return d - jquery.easing.easeoutbounce(a, e - b, 0, d, e) + c
	},
	easeoutbounce: function(a, b, c, d, e) {
		return 1 / 2.75 > (b /= e) ? d * 7.5625 * b * b + c: 2 / 2.75 > b ? d * (7.5625 * (b -= 1.5 / 2.75) * b + .75) + c: 2.5 / 2.75 > b ? d * (7.5625 * (b -= 2.25 / 2.75) * b + .9375) + c: d * (7.5625 * (b -= 2.625 / 2.75) * b + .984375) + c
	},
	easeinoutbounce: function(a, b, c, d, e) {
		return e / 2 > b ? .5 * jquery.easing.easeinbounce(a, 2 * b, 0, d, e) + c: .5 * jquery.easing.easeoutbounce(a, 2 * b - e, 0, d, e) + .5 * d + c
	}
});

/******************/
/*
$(".menudl").menu({
	type:1,//0--无滑块(默认)；1--有滑块
	height:5,//滑块高度
	background:"#152d79",//滑块背景色
	bottom:0,//滑块距离导航底部距离
	animateease:"easeoutbounce",//滑块的运动轨迹
	time:1000,//滑块的运动时间
	zindex:-1,//滑块的层级
	margin:0,//滑块左右间距
	antcomplete:true,//滑块动画完成后调函数（默认）
	startfun:function(i){//滑块进入后回调方法
		$(".menudl dd").eq(i).find(".div_a").stop(true,true).slidedown();
	},
	endfun:function(i){//滑块离开后回调方法
		$(".menudl dd").find(".div_a").stop(true,true).slideup()
	}
});
*/