// JavaScript Document
$(document).ready(function(){
	var beginTime = 0;//执行开始时间
	var differTime = 0;//时间差
	window.onunload = function (){
        differTime = new Date().getTime() - beginTime;
        if(differTime <= 5) {
            console.log("浏览器关闭");
            hcclear();
        }else{
            console.log("浏览器刷新");
        }
    }
    window.onbeforeunload = function (){
       beginTime = new Date().getTime();
    };
});