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显示停留时间

演示效果：

代码提示：按下面代码中的文字说明复制代码

一：将下面的代码复制到〈HEAD〉中：
<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>

二：修改〈BODY〉中的内容，将下面的代码加入到，〈BODY〉中
onLoad="init(); window.setTimeout('show_secs()',1);"

三：将下面的代码加入到〈BODY〉中
<FORM name="fm0" onSubmit="0"><FONT COLOR="#6060FF">停留时间:
</FONT><INPUT type="text" name="time_spent" size=7 onFocus="this.blur()"></FORM>

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