/*

 * control menu show or hide(expand and collapse)

 */

var status = [];

function menuOperation() {

    $("#menu li ul").on("click",function(){

        return false;

    })//阻止子元素冒泡

    $("#menu .menu").on("click", function(){

        var thisClass = $(this).attr("class");

        if(thisClass != "isHide"){

            $(this).attr("class", "isHide")

            $(this).children().hide();

        } else {

            $(this).removeClass("isHide")

            $(this).children().show();

        }

    })

}

function keepOldStyle() {

    var content = $("#menu").children();

    for(var i=0; i<content.length; i++) {

        var thisClass = content[i].classList;

        //alert(thisClass);

        if(thisClass == "isHide") {

            content.eq(i).children().hide();

        } else {

            content.eq(i).children().show();

        }

    }

}