$(document).ready(function () {
    $(".lcban").DuZhan_banner2({ showclass: ".lcban", show_leg: "1", showspanindex: ".lcbanspans"});		
	
    $(".lcbanspans span").width(($(".lcbanspan").width()-50)/$(".lcbanspans span").length);


	
	
});
(function ($) {
    $.fn.DuZhan_banner2 = function (options) {

        var defaults = {
            showclass: "lcban",
            showspanindex: "",
            showtime: "5000",
            show_leg: "1"

        };
        var showindex = 0;
        var options = $.extend(defaults, options);
        var showlist = $(options.showclass + " li");
        var showfirst = showlist.eq(0);
        
			
        var len = parseInt(showlist.length % options.show_leg > 0 ? showlist.length / options.show_leg + 1 : showlist.length / options.show_leg);
        var index = 0;
        var showcur = "cur";
        var shownowclass = options.showclass;
        var picTimer;
       // showlist.css({ "width": showlist.width(), "margin": showlist.css("margin") })
	  showlist.css({ "width": showlist.width()+2, "margin": showlist.css("margin") })
//	   if($(window).width() <= 1024){
//		    showlist.css({ "width": showlist.width()+1, "margin": showlist.css("margin") })
//		   }
	    
		 
		 
		 
        $(shownowclass).height(showfirst.height() + 30);
        $(shownowclass + " .lcbanlist").css({ "width": showfirst.outerWidth(true) * showlist.length+100, "height": showfirst.height(), "position": "absolute" });
        var sWidth = showfirst.outerWidth(true) * options.show_leg;
        
        if (len > 1) {
            for (var i = 0; i < len; i++) {
                $(options.showspanindex).append("<span " + (i == 0 ? " class=\"" + showcur + "\"" : "") + "></span>");
            }
        }
      var showspan = $(options.showspanindex + " span");
      $(showspan).mouseenter(function () {
            clearInterval(picTimer);
            index = $(showspan).index(this);			
            showMove(index);
            picTimer = setInterval(AutoMove, options.showtime); 
        })
 
		
        picTimer = setInterval(AutoMove, options.showtime); 
        function AutoMove() {
            index++;
            if (index >= len) {
                index = 0;
            }
			 showMove(index);
        } 

 $(".lcleft").click(function(){	
	       clearInterval(picTimer);		 
			index--; 
			if(index>=0){
			
			} else{ 
		     index=len-1;			 
		    }
			showMove(index);
			
		})
		
		$(".lcright").click(function(){		
		   clearInterval(picTimer);	
			index++;
			if(index>=len){
			   index=0;
			} else{ 		     	 
		    } 
			showMove(index); 			
		})
        function showMove() {

            if (index < len) {
               // clearInterval(picTimer);
                var nowLeft = -index * sWidth;
                $(options.showclass +" .lcbanlist").stop(true, false).animate({ "left": nowLeft }, 500, function () {
                  $(".lcbanspan s.s").html("0"+(index+1));
			      $(".lcbanspan s.s1").html("0"+len);
				  
                });
                $(options.showspanindex + " span").removeClass(showcur).eq(index).addClass(showcur);
				$(".lcbanlist ul li").removeClass("cur").eq(index).addClass("cur");
            } else {

               // showFirPic();
                index = 0;
            }
        }
    }
})(jQuery)