// JavaScript Document
//图片左右切换
     function DY_scroll(wraper,prev,next,img,speed,or)
     {
      var wraper = $(wraper);
      var prev = $(prev);
      var next = $(next);
      var img = $(img).find('ul');
      var w = img.find('li').outerWidth(true);
      var s = speed;
      next.click(function()
           {
            img.animate({'margin-left':-w},function()
                      {
                       img.find('li').eq(0).appendTo(img);
                       img.css({'margin-left':0});
                       });
            });
      prev.click(function()
           {
            img.find('li:last').prependTo(img);
            img.css({'margin-left':-w});
            img.animate({'margin-left':0});
            });
      if (or == true)
      {
       ad = setInterval(function() { next.click();},s*1000);
       wraper.hover(function(){clearInterval(ad);},function(){ad = setInterval(function() { next.click();},s*1000);});

      }
     }
    // DY_scroll('.img-scroll','.prev','.next','.img-list',3,true);// true为自动播放，不加此参数或false就默认不自动

//滚动
(function($){
	$.fn.kxbdMarquee = function(options){
		var opts = $.extend({},$.fn.kxbdMarquee.defaults, options);
		
		return this.each(function(){
			var $marquee = $(this);//滚动元素容器
			var _scrollObj = $marquee.get(0);//滚动元素容器DOM
			var scrollW = $marquee.width();//滚动元素容器的宽度
			var scrollH = $marquee.height();//滚动元素容器的高度
			var $element = $marquee.children(); //滚动元素
			var $kids = $element.children();//滚动子元素
			var scrollSize=0;//滚动元素尺寸
			var _type = (opts.direction == 'left' || opts.direction == 'right') ? 1:0;//滚动类型，1左右，0上下

			//防止滚动子元素比滚动元素宽而取不到实际滚动子元素宽度
			//$element.css(_type?'width':'height',100000);
			//获取滚动元素的尺寸
			if (opts.isEqual) {
				scrollSize = $kids[_type?'outerWidth':'outerHeight']() * $kids.length;
			}else{
				$kids.each(function(){
					scrollSize += $(this)[_type?'outerWidth':'outerHeight']();
				});
			}
			//滚动元素总尺寸小于容器尺寸，不滚动
			if (scrollSize<(_type?scrollW:scrollH)) return; 
			//克隆滚动子元素将其插入到滚动元素后，并设定滚动元素宽度
			$element.append($kids.clone()).css(_type?'width':'height',scrollSize*2);
			
			var numMoved = 0;
			function scrollFunc(){
				var _dir = (opts.direction == 'left' || opts.direction == 'right') ? 'scrollLeft':'scrollTop';
				if (opts.loop > 0) {
					numMoved+=opts.scrollAmount;
					if(numMoved>scrollSize*opts.loop){
						_scrollObj[_dir] = 0;
						return clearInterval(moveId);
					} 
				}
				if(opts.direction == 'left' || opts.direction == 'up'){
					var newPos = _scrollObj[_dir] + opts.scrollAmount;
					if(newPos>=scrollSize){
						newPos -= scrollSize;
					}
					_scrollObj[_dir] = newPos;
				}else{
					var newPos = _scrollObj[_dir] - opts.scrollAmount;
					if(newPos<=0){
						newPos += scrollSize;
					}
					_scrollObj[_dir] = newPos;
				}
			};
			//滚动开始
			var moveId = setInterval(scrollFunc, opts.scrollDelay);
			//鼠标划过停止滚动
			$marquee.hover(
				function(){
					clearInterval(moveId);
				},
				function(){
					clearInterval(moveId);
					moveId = setInterval(scrollFunc, opts.scrollDelay);
				}
			);
			
			//控制加速运动
			if(opts.controlBtn){
				$.each(opts.controlBtn, function(i,val){
					$(val).bind(opts.eventA,function(){
						opts.direction = i;
						opts.oldAmount = opts.scrollAmount;
						opts.scrollAmount = opts.newAmount;
					}).bind(opts.eventB,function(){
						opts.scrollAmount = opts.oldAmount;
					});
				});
			}
		});
	};
	$.fn.kxbdMarquee.defaults = {
		isEqual:false,//所有滚动的元素长宽是否相等,true,false
		loop: 0,//循环滚动次数，0时无限
		direction: 'up',//滚动方向，'left','right','up','down'
		scrollAmount:1,//步长
		scrollDelay:60,//时长
		newAmount:3,//加速滚动的步长
		eventA:'mousedown',//鼠标事件，加速
		eventB:'mouseup'//鼠标事件，原速
	};
	
	$.fn.kxbdMarquee.setDefaults = function(settings) {
		$.extend( $.fn.kxbdMarquee.defaults, settings );
	};
	
})(jQuery);


/*$(document).ready(function(){
	$('.marquee').kxbdMarquee({
			direction:'left',
			eventA:'mouseenter',
			eventB:'mouseleave'
	});
});
*/
var i=0;
function picChange(obj){
	if(i<$(""+obj+" li").length-1){
		i++;
		$(""+obj+" li").eq(i).fadeIn().siblings("li").fadeOut();
		}else{
		i=0;
		$(""+obj+" li").eq(i).fadeIn().siblings("li").fadeOut();
	}
	
}
/*设为首页加入收藏*/

function AddFavorite(sURL, sTitle)
{
    try
    {
        window.external.addFavorite(sURL, sTitle);
    }
    catch (e)
    {
        try
        {
            window.sidebar.addPanel(sTitle, sURL, "");
        }
        catch (e)
        {
            alert("加入收藏失败，请使用Ctrl+D进行添加");
        }
    }
}
function SetHome(obj,url){
        try{
                obj.style.behavior='url(#default#homepage)';
				obj.setHomePage(url);
        }
        catch(e){
                if(window.netscape) {
                        try {
                                netscape.security.PrivilegeManager.enablePrivilege("UniversalXPConnect");
                        }
                        catch (e) {
                                alert("此操作被浏览器拒绝！n请在浏览器地址栏输入‘about:config’并回车n然后将 [signed.applets.codebase_principal_support]的值设置为'true',双击即可。");
                        }
                        var prefs = Components.classes['@mozilla.org/preferences-service;1'].getService(Components.interfaces.nsIPrefBranch);
                        prefs.setCharPref('browser.startup.homepage',url);
                 }
        }
}
//文字上下滚动
function AutoScroll(obj){ 
	$(obj).find("ul:first").animate({ 
	marginTop:"-28px" 
	},500,function(){ 
	$(this).css({marginTop:"0px"}).find("li:first").appendTo(this); 
	}); 
} 
//专题
function zhuantiMove(obj) {
	$(obj).addClass('current');
	$(obj).siblings().removeClass('current');
	var current = $("#zhuanti .icons li.current").index();
	var zhuantiHeight = 189;
	$('#zhuanti .pics').animate({marginTop:-current * zhuantiHeight+'px'});
	clearInterval(zhuantiInterval);
	window.zhuantiInterval = setInterval('zhuantiInit()',3000);
}

function zhuantiInit() {
	var current = $("#zhuanti .icons li.current").index();
	var next = current + 1;
	if (next == $("#zhuanti .icons li").length) {
		next = 0;	
	}
	var obj = $("#zhuanti .icons li").eq(next);
	zhuantiMove(obj);
}
//tab切换
		function setTab(titleId,contentId,index) {
			var titleId="#"+titleId;
			var contentId="#"+contentId;
			if($(titleId).children("li").eq(index).attr("class")!="current"&&$(titleId).children("a").eq(index).attr("class")!="current"){
                  $(titleId).find(".morehref").attr("href",$(titleId).find(".current").attr("mylink"));
				$(titleId).children("a").each(function() {
					if ($(this).index()!=index) {
						//$(this)[0].className="";
						$(this).removeClass("current");
					} else {
						//$(this)[0].className="current";
						$(this).addClass("current");

					}
				});
				$(""+titleId+" a").each(function() {
					if ($(this).index()!=index) {
						//$(this)[0].className="";
						$(this).removeClass("current");
					} else {
						//$(this)[0].className="current";
						$(this).addClass("current");

					}
				});				
				$(titleId).children("ul").children("li").each(function() {
					if ($(this).index()!=index) {
						//$(this)[0].className="";
						$(this).removeClass("current");
					} else {
						//$(this)[0].className="current";
						$(this).addClass("current");

					}
				});				
				$(contentId).children("ul").each(function() {
					if ($(this).index()!=index) {
						$(this)[0].style.display="none";
					} else {
						$(this)[0].style.display="block";
					}
				});
			};
		}
//图片滚动 调用方法 imgscroll({speed: 30,amount: 1,dir: "up"});
$.fn.imgscroll = function(o){
	var defaults = {
		speed: 40,
		amount: 0,
		width: 1,
		dir: "left"
	};
	o = $.extend(defaults, o);
	
	return this.each(function(){
		var _li = $("li", this);
		_li.parent().parent().css({overflow: "hidden", position: "relative"}); //div
		_li.parent().css({margin: "0", padding: "0", overflow: "hidden", position: "relative", "list-style": "none"}); //ul
		_li.css({position: "relative", overflow: "hidden"}); //li
		if(o.dir == "left") _li.css({float: "left"});
		
		//初始大小
		var _li_size = 0;
		for(var i=0; i<_li.size(); i++)
			_li_size += o.dir == "left" ? _li.eq(i).outerWidth(true) : _li.eq(i).outerHeight(true);
		
		//循环所需要的元素
		if(o.dir == "left") _li.parent().css({width: (_li_size*3)+"px"});
		_li.parent().empty().append(_li.clone()).append(_li.clone()).append(_li.clone());
		_li = $("li", this);

		//滚动
		var _li_scroll = 0;
		function goto(){
			_li_scroll += o.width;
			if(_li_scroll > _li_size)
			{
				_li_scroll = 0;
				_li.parent().css(o.dir == "left" ? { left : -_li_scroll } : { top : -_li_scroll });
				_li_scroll += o.width;
			}
				_li.parent().animate(o.dir == "left" ? { left : -_li_scroll } : { top : -_li_scroll }, o.amount);
		}
		
		//开始
		var move = setInterval(function(){ goto(); }, o.speed);
		_li.parent().hover(function(){
			clearInterval(move);
		},function(){
			clearInterval(move);
			move = setInterval(function(){ goto(); }, o.speed);
		});
	});
};
//$(document).ready(function(){

//	$(".scrollleft").imgscroll({
	//	speed: 40,    //图片滚动速度
	//	amount: 0,    //图片滚动过渡时间
//		width: 1,     //图片滚动步数
///		dir: "left"   // "left" 或 "up" 向左或向上滚动
//	});
	
//	$(".scrolltop").imgscroll({
//		speed: 40,    //图片滚动速度
	//	amount: 0,    //图片滚动过渡时间
//		width: 1,     //图片滚动步数
//		dir: "up"   // "left" 或 "up" 向左或向上滚动
//	});
	
//});

//select 模拟框
function selectBox(){
	$(".options").hover(function(){
		$(this).children("dd").show();
		$(this).children("b").show();
	}, function() {
		$(this).children("dd").hide();
	});
	
	$(".options ,.options div").hover(function(){
		$(this).addClass("hover");
	},function(){
		$(this).removeClass("hover");
	});
	
	
	$(".options dd div").click(function(){
		$("#text").val($(this).html());//当前
		var s=$(this).attr("s");
		window.open(s);
		$(this).children("dd").hide();
	});	
}
//返回顶部
//滚动
 $(window).scroll(function() {
			if($(this).scrollTop()>0){
				$("#back-top").fadeIn();
			}else{
				$("#back-top").fadeOut();
}
	})
$(function(){
		$("#back-top").click(function(){
			$('body,html').animate({scrollTop:0},200);
		})
	})
//导航当前
$(function(){

})
//图片放大
function showbigpic(obj) {
				window.w = $(obj).width();
				window.h = $(obj).height();
				window.oriX = $(obj).offset().left;
				window.oriY = $(obj).offset().top;
				
				var screenImage = $(obj);
				// Create new offscreen image to test
				var theImage = new Image();
				theImage.src = screenImage.attr("src");
				
				// Get accurate measurements from that.
				var imageWidth = theImage.width;
				var imageHeight = theImage.height;
				
				var targetH =imageHeight;
				var targetW =imageWidth;	
			
				var targetX = ($(window).width() - targetW) / 2;
				var targetY = ($(window).height() - targetH) / 2 + $(document).scrollTop();
				var html = '<img src="http://www.szqwmotor.com/'+$(obj).attr('src')+'" width="'+w+'" height="'+h+'" id="bigpic" style="z-index:1000;position:absolute;left:'+oriX+'px;top:'+oriY+'px" onclick="remove_big(this)" />';
				$("#alphabg").css({width:$(document).width()+"px",height:$(document).height()+"px"});
				$("#alphabg").fadeIn();
				$("body").append(html);
				
				$("#bigpic").animate({width:targetW+'px',height:targetH+'px',left:targetX+'px',top:targetY+'px'},1000,'swing',function() {$("#alphabg").css({width:$(document).width()+"px",height:$(document).height()+"px"});} );
			}
			function remove_big() {
				$("#bigpic").animate({width:w+'px',height:h+'px',left:oriX+'px',top:oriY+'px'},1000,'swing',function() {$("#bigpic").remove();$("#alphabg").fadeOut();});	
			}	

//单行新闻
function AutoScroll(obj){
	$(obj).find("ul:first").animate({
		marginTop:"-40px"
	},1000,function(){
		$(this).css({marginTop:"0px"}).find("a:first").appendTo(this);
	});
}
//超出显示省略号
jQuery.fn.limit=function(){  
    var self = $("[limit]");  
    self.each(function(){  
        var objString = $(this).text();  
        var objLength = $(this).text().length;  
        var num = $(this).attr("limit");  
        if(objLength > num){  
            $(this).attr("title",objString);  
            objString = $(this).text(objString.substring(0,num) + "...");  
        }  
    })  
}