实例95.页面停留时间.html

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<script language="JAVASCRIPT">
<!--
var time_start = new Date();          
var clock_start = time_start.getTime();

function get_time_spent ()
{ 
var time_now = new Date();              
return((time_now.getTime() - clock_start)/1000); 
}

function show_secs ()
{ 
var total_secs = Math.round(get_time_spent());    
var secs_spent = total_secs % 60;
var mins_spent = Math.round((total_secs-30)/60); 
var secs_spent = "" + ((secs_spent>9) ? secs_spent : "0" + secs_spent);   
var mins_spent = "" + ((mins_spent>9) ? mins_spent : "0" + mins_spent);   
document.form0.time_spent.value = mins_spent + ":" + secs_spent;          
setTimeout('show_secs()',1000); 
}
setTimeout('show_secs()',1);
// -->
</script>

<FORM name="form0" onSubmit="0">你在本页面的停留时间:
<INPUT type="text" name="time_spent" size=7 onFocus="this.blur()"></FORM>