Summary of several examples of page stay time displayed in javascript

Sometimes we can see that some websites can record the access time when you enter the website and leave the website. Below I will use js to write a few simple methods, for your reference.

Instance 1

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<Script type = "text/javascript"> Var second = 0; Var minute = 0; Var hour = 0; Window. setInterval ("OnlineStayTime ();", 1000 ); Function OnlineStayTime (){ Second ++; If (second = 60 ){ Second = 0; Minute ++; } If (minute = 60 ){ Minute = 0; Hour ++; } Window. status = "stay time" + hour + ":" + minute + ":" + second; } </Script>

Instance 2

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<! Doctype html public "-// W3C // dtd html 4.0 Transitional // EN"> <HTML> <Head> <Meta http-equiv = "content-type" content = "text/html; charset = gb2312"> <Title> JavaScript timer </Title> <H3> <Font color = "blue"> topic: JavaScript timer </Font> </H3> </Head> <Body> <Form name = "fm_Time" onSubmit = "0"> <Font size = 5 color = "red"> <center> show your stay time </Center> </Font> <P> <HR size = 3 color = "blue"> Current Time: <P> <Input type = "text" name = "t_spent" id = "t_spent" size = 7> </Form> <BR> </HTML> <Script language = "javascript"> Var time = 1; Function show_secs (){ Document. getElementById ('t_ spent'). value = time + 'second '; Time ++; Window. setTimeout ('show _ secs () ', 1000 ); } Show_secs (); </Script>

Instance 3

 

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<Html> <Head> <Title> statistical method of page stay time </title> </Head> <BODY onLoad = "init (); window. setTimeout ('show _ secs () ', 1);"> <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_notesgettime ()-clock_start)/1000 ); } Function show_secs () { 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> <Form name = "fm0" onSubmit = "0"> your stay on this page: <INPUT type = "text" name = "time_spent" size = 7 onFocus = "this. blur ()"> </Form> </Body> </Html>