function hidelast(){
            if(lastobj){
               lastobj.children(".detail:display").hide("fast");
               lastobj.children("img").attr("src","../images/"+lastobj.attr("id")+".jpg");
            }
        }
        var lastobj=null;
        var delay=null;  
        $(document).ready(function(){
            $("a").attr("hideFocus","true");//去掉A标签的焦点框
            
            //导航栏事件-------------------------------------------------------------------------
            $(".title_top .items .item").mouseover(function(){
                if(delay){
                    clearTimeout(delay);
                }
                if(lastobj&&(lastobj.attr("id")!=$(this).attr("id"))){
                   lastobj.children("img").attr("src","../images/"+lastobj.attr("id")+".jpg");
                  lastobj.children("a").children("img").attr("src","../images/"+lastobj.attr("id")+".jpg");
                 
                   lastobj.children(".detail:display").hide("fast").children("a").css("color","");
                }
                 $(this).children("img").attr("src","../images/"+$(this).attr("id")+"1.jpg");
                $(this).children("a").children("img").attr("src","../images/"+$(this).attr("id")+"1.jpg");
                 
                var obj = $(this).children(".detail:hidden");
                if($.browser.msie){
                    obj.css("top",$(this).attr("offsetHeight")+"").css("left","0").show("fast");                    
                    this.style.zIndex=200;
                }else{
                    obj.css("top",$(this).attr("offsetHeight")+"px").css("left","0").show("fast");
                    this.style.zIndex=200;
                }
            });
            $(".title_top .items .item").bind("mouseleave",function(){
                lastobj =  $(this);
            });
            $(".title_top .items").bind("mouseleave",function(){
                delay = setTimeout("hidelast()",'1000');
            });
            //-------------------------------------------------------------------------------------
            
            
            //首页公司动态与业界新闻点击事件-------------------------------------------------------
            $(".gsdongtai").children("a:lt(2)").click(function(){
                var lastid=$(".gsm_act").attr("id")+"_content";
                $(".gsm_act").attr("className","gsm");
                $(this).attr("className","gsm_act");
                $("#"+lastid).css("display","none");
                var tagid = $(this).attr("id")+"_content";
                $("#"+tagid).fadeIn("fast");
            });

            //-------------------------------------------------------------------------------------
            
            $(".pinmu a").click(function(){
                var lastid=$(".pinmu_item_act").attr("id")+"_content";
                $(".pinmu_item_act").attr("className","pinmu_item");
                $(this).attr("className","pinmu_item_act");
                $("#"+lastid).css("display","none");
                var tagid = $(this).attr("id")+"_content";
                $("#"+tagid).fadeIn("fast");
            });
            
            var lastNmenu=null;
            $(".title_top .items .item .detail .nextmenu").mouseover(function(){
                if(lastNmenu&&lastNmenu.attr("id")!=$(this).attr("id")){
                     $("#"+lastNmenu.attr("id")+"_nmenu").fadeOut();
                }
                var id=$(this).attr("id")+"_nmenu";
                $('#'+id).fadeIn("fast");
                
            });
            
            $(".title_top .items .item .detail .nextmenu").bind("mouseleave",function(){
                lastNmenu =  $(this);
            });
            
            
            $(".title_top .items .item .detail").bind("mouseleave",function(){
                delay = setTimeout(new function(){
                    if(lastNmenu&&lastNmenu.attr("id")!=$(this).attr("id")){
                        $("#"+lastNmenu.attr("id")+"_nmenu").fadeOut();
                    }
                },
                '1000');
                
            });
        });