/* jquery.spinner v1.0 copyright (c) 2014 by:loyaoo taobao:http://isseven.taobao.com */

(function($) {
	
	$.fn.spin = function (opts) {
	
		var defaults = {value:1, min:0, len:3, max:99}
		var options = $.extend(defaults, opts)
		var keycodes = {up:38, down:40}
		return this.each(function() {
		
			var a = $('<a></a>'); f(a,0,"decrease","-");	//加
			var c = $('<a></a>'); f(c,0,"increase","+");	//减
			var b = $('<input/>');f(b,1,"amount");cv(0);	//值
			
			$(this).append(a).append(b).append(c);
			a.click(function() {
				var par =$(this).closest(".shop_one");
					cv(-1);					
					settotal();
				
					
				});
			b.keyup(function() {
				var par =$(this).closest(".shop_one");
					cv(0);					
					settotal();
					
					
				});
			c.click(function() {
				var par =$(this).closest(".shop_one");
					cv(+1);					
					settotal();
					
					
				});
			b.bind('keyup paste change',function(e){
				e.keycode==keycodes.up&&cv(+1);
				e.keycode==keycodes.down&&cv(-1);
			});
			
			function cv(n){
				b.val(b.val().replace(/[^\d]/g,''));
				bv=parseint(b.val()||options.min)+n;
				bv>=options.min&&bv<=options.max&&b.val(bv);
				if(bv<=options.min){b.val(options.min);f(a,2,"disde","decrease");}else{f(a,2,"decrease","disde");}
				if(bv>=options.max){b.val(options.max);f(c,2,"disin","increase");}else{f(c,2,"increase","disin");}
			}
			
		});

		function f(o,t,c,s){
			t==0&&o.addclass(c).attr("href","javascript:void(0)").append("<i></i>").find("i").append(s);
			t==1&&o.addclass(c).attr({"value":options.value,"autocomplete":"off","maxlength":options.len});
			t==2&&o.addclass(c).removeclass(s);
			
		}
		//计算单行的价格
		function settotal(){
			var s=0,price,num;
			$(".shop_one").each(function(i){
				console.info(s+"xx")
				price = $(this).find(".shop_price em").text();
				num = $(this).find(".order_amount .amount").val();
				s = s +parseint(num)*parsefloat(price);
				
			});
			console.info(s)
			var total =$(".shop_calcu").find(".sp2 em");			
			total.html(s);			
		}
		//但数值为0 删除这一条
//		function deletegood(val,par){
//			if(val==0){	
//				$(par).remove();
//				settotal();
//			}
//		};
		
	 }
//	settotal();
})(jquery);