js 통계 사이트 체류 시간

	
		
		
		
		
	
	
		
		
			var second = 0;
			window.setInterval(function () {
			    second ++;
			}, 1000);
			
			var tjArr = localStorage.getItem("jsArr")!=null ? localStorage.getItem("jsArr") : '[{}]';
			
			$.cookie('tjRefer', getReferrer() ,{expires:1,path:'/'});
			
			window.onbeforeunload = function() {
			    if($.cookie('tjRefer') == ''){
			        var tjT = eval('(' + localStorage.getItem("jsArr") + ')');
			        if(tjT){
			            tjT[tjT.length-1].time += second;
			            var jsArr= JSON.stringify(tjT);
			            localStorage.setItem("jsArr", jsArr);
			        }
			    } else {
			        var tjArr = localStorage.getItem("jsArr") ? localStorage.getItem("jsArr") : '[{}]';
			        var dataArr = {
			            'url' : location.href,
			            'time' : second,
			            'refer' : getReferrer(),
			            'timeIn' : Date.parse(new Date()),
			            'timeOut' : Date.parse(new Date()) + (second * 1000)
			        };
			        tjArr = eval('(' + tjArr + ')');
			        tjArr.push(dataArr);
			        tjArr= JSON.stringify(tjArr);
			        localStorage.setItem("jsArr", tjArr);
			    }
			};
			function getReferrer() {
			    var referrer = '';
			    try {
			        referrer = window.top.document.referrer;
			    } catch(e) {
			        if(window.parent) {
			            try {
			                referrer = window.parent.document.referrer;
			            } catch(e2) {
			                referrer = '';
			            }
			        }
			    }
			    if(referrer === '') {
			        referrer = document.referrer;
			    }
			    return referrer;
			}