$(function(){ 
    $('#typedown li a').click(function(){
        var name = $(this).html();
        var kid = $(this).attr('kid');
        $('#keyword').attr('key-type',kid);
        $('.search-btn').attr('key-type',kid);
        $('.searchtype span').text(name);
        $('#typedown').hide();
        $('#typedown li').show();
        $('.allkid'+kid).hide();
        var searchname = '搜索'+name;
        $('#keyword').attr('placeholder',searchname);
    });

    $('.searchtype').mouseover(function(){
        $('#typedown').show();
    });
    $('#typedown').mouseleave(function(){
        $('#typedown').hide();
    })
     $('.searchtype').mouseleave(function(){
        $('#typedown').hide();
    })
    $('#typedown').mouseover(function(){
        $('#typedown').show();
    })


    var mark = true;
    $(window).scroll(function () {
        var scrollheight =  parseInt($(document).scrollTop());
        if (scrollheight>=300) { 
            if (mark) {
                mark = false;
                $('.headercatage').css('top','-75px');
                $('.headercatage').show();
                $(".headercatage").animate({top:"0px"},300);
                $('#dropdown-box').hide();
            }
        } else {
            if(!mark) {
                mark=true;
                $('.headercatage').hide();
            }
        }

    });
     
});