/*
* jy网页特效
*/
var jy={};
jy.fun={};
jy.variable={};
jy.variable.flag=0;
jy.variable.res=function(num){
	num=(num>jy.variable.num)?jy.variable.res(num-jy.variable.num):num;
	num=(num<0)?jy.variable.res(num+jy.variable.num):num;	
	return num;
}
jy.fun.changePic=function(num){	
	num=jy.variable.res(num);
	$(".main_ad img").attr("src",$("#pic_scroll li:eq("+num+") img").attr("src"));
}
$(function(){
	DD_belatedPNG.fix('.png');
	DD_belatedPNG.fix('.submitted_l_ti');
	DD_belatedPNG.fix('.head_r a:hover');
	DD_belatedPNG.fix('.submitted_nr li ');
	jy.variable.num=$("#pic_scroll li img").length;
	var li_num=88/$('.slide_nr').children().length+'px';
	$(".slide_nr li").css('width',li_num);
	$(".slide_nr li:eq(0)").css('width','154px');
	if($("#pic_scroll").length=1){
		$("#pic_scroll").jCarouselLite({
			btnNext: "#btn_gt",
			btnPrev: "#btn_lt",
			vertical: false,
			visible: jy.variable.num,
			speed: 500,
			auto: 5000
		});
	};	
	$(".slide_nr li").hover(function(){
		$(this).css('width','154px').siblings().css('width',li_num);
		return false;
	});
	$("#form_submit").click(function(){
		if($("#textfield").val().length && $("#textfield2").val().length && $("#textfield3").val().length && $("#textfield4").val().length && $("#textfield5").val().length && $("#textfield6").val().length && $("#textfield7").val().length){	
			$("#info_form").submit();
		}else{
			alert("选项不能为空");
		}
	});
	$(".product li img").click(function(){		
		$(".main_ad img").attr("src",$(this).attr("src"));
	});
	if($(".main_ad ul li").length>0){
		picSlide($(".main_ad ul li"));
	}
});
var pic_flag=0;
function picSlide($obj_pic,slideTime,changeTime,flag){	
	var pic_num=$obj_pic.length;
	if(!pic_num){
		return false;
	}
	$obj_pic.css({"display":"none","opacity":"0.1"});
	$obj_pic.eq(0).css({"display":"block","opacity":"1"});
	slideTime=(slideTime==undefined)?6000:slideTime*1000;
	changeTime=(changeTime==undefined)?1500:changeTime*1000;
	setInterval(function(){
		$obj_pic.eq(pic_flag).animate({"opacity":"0.1"},changeTime,function(){			
			$(this).css("display","none");			
			pic_flag=(++pic_flag>=pic_num)?(pic_flag-pic_num):pic_flag;
			if($("#banner_num").children().length){
				picNumSlide($("#banner_num li"));
			}
			$obj_pic.eq(pic_flag).css("display","block").animate({"opacity":"1"},changeTime);			
		});	
	},slideTime);
}