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javascript计算用户打开网页的停留时间

2014-01-09 16:25 411 查看
<SCRIPT LANGUAGE="JAVASCRIPT"><!--var ap_name = navigator.appName;var ap_vinfo = navigator.appVersion;var ap_ver = parseFloat(ap_vinfo.substring(0,ap_vinfo.indexOf('(')));var time_start = new Date();var clock_start = time_start.getTime();var dl_ok=false;function init (){if(ap_name=="Netscape" && ap_ver>=3.0)dl_ok=true; return true;}function get_time_spent (){ var time_now = new Date();return((time_now.getTime() - clock_start)/1000); }function show_secs () // show the time user spent on the side{ var i_total_secs = Math.round(get_time_spent()); var i_secs_spent = i_total_secs % 60;var i_mins_spent = Math.round((i_total_secs-30)/60); var s_secs_spent = "" + ((i_secs_spent>9) ? i_secs_spent : "0" + i_secs_spent);var s_mins_spent ="" + ((i_mins_spent>9) ? i_mins_spent : "0" + i_mins_spent);document.fm0.time_spent.value = s_mins_spent + ":" + s_secs_spent;window.setTimeout('show_secs()',1000); }// --></SCRIPT>
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标签:  停留时间