$(function () {
 $('#w_grid-1548214983685 .p_gridbox').css("height", "50px");
   $('#w_grid-1548161796418 .p_gridbox').css("height", "50px");
   $('#w_grid-1548162605954 .p_gridbox').css("height", "50px");
   $('#w_grid-1548162878501 .p_gridbox').css("height", "50px");
   $('#w_grid-1548163094537 .p_gridbox').css("height", "50px");
   $('#w_grid-1548203961613 .p_gridbox').css("height", "50px");
   $('#w_grid-1548204133559 .p_gridbox').css("height", "50px");
   $('#w_grid-1548204564245 .p_gridbox').css("height", "50px");
});


function scrollEvent() {
        window.onscroll = function(e){
            scrollFunc();
            if(scrollDirection == 'down'){
                //椤甸潰鍚戜笅婊氬姩瑕佸仛鐨勪簨鎯
               console.log('椤甸潰鍚戜笅婊氬姩');
               $('.p_NavBox').parents('.p_gridbox').css({
               		height:0
               })
            }
            else if(scrollDirection == 'up'){
                //椤甸潰鍚戜笂婊氬姩瑕佸仛鐨勪簨鎯
               console.log('椤甸潰鍚戜笂婊氬姩');
               $('.p_NavBox').parents('.p_gridbox').css({
               	height:'50px'
               })
            }
        }
    }
    scrollEvent();
    var scrollAction = {
            x: 'undefined',
            y: 'undefined'
        },
        scrollDirection;

    function scrollFunc() {
        if (typeof scrollAction.x == 'undefined') {
            scrollAction.x = window.pageXOffset;
            scrollAction.y = window.pageYOffset;
        }
        var diffX = scrollAction.x - window.pageXOffset;
        var diffY = scrollAction.y - window.pageYOffset;
        if (diffX < 0) {
            // Scroll right
            scrollDirection = 'right';
        } else if (diffX > 0) {
            // Scroll left
            scrollDirection = 'left';
        } else if (diffY < 0) {
            // Scroll down
            scrollDirection = 'down';
        } else if (diffY > 0) {
            // Scroll up
            scrollDirection = 'up';
        } else {
            // First scroll event
        }
        scrollAction.x = window.pageXOffset;
        scrollAction.y = window.pageYOffset;
    }