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Editorial Team
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Asked: 2026-06-01T10:18:15+00:00

<html> <head> <title>Latency Tracking Demo</title> </head> <body> <script type=text/javascript src=http://www.google-analytics.com/ga.js></script> <script type=text/javascript src=http://www.example.com/scripts/time-tracker.js></script> <script

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<html>  
<head>  
<title>Latency Tracking Demo</title>  
</head>  
<body>  
<script type="text/javascript" src="http://www.google-analytics.com/ga.js"></script>  
<script type="text/javascript" src="http://www.example.com/scripts/time-tracker.js"></script>  
<script type="text/javascript">  
var timeTracker = new TimeTracker();  
var pageTracker = _gat._getTracker('UA-1735986-1');   
</script>  
<input type="button" value="Start Timer" onclick="timeTracker._recordStartTime();"/>  
<input type="button" value="Stop Timer" onclick="timeTracker._recordEndTime();"/>  
<input type="button" value="Track!" onclick="timeTracker._track(pageTracker, undefined, 'Manual Test');"/>  
</body>  
</html>

I am trying to apply this concept on onload JavaScript event as Start Time and onunload as Stop time , like

  onload="timeTracker._recordStartTime();"
    onunload="timeTracker._recordEndTime(); timeTracker._track(pageTracker, 'Category','Action');"

But have not get it work ..and even not error was thrown

any idea

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1 Answer

  1. Editorial Team
    function loadIt(){
  timeTracker._recordStartTime();
}

function unLoadIt(){
  timeTracker._recordEndTime(); 
  timeTracker._track(pageTracker, 'Category','Action');
}

    Then (I use this function)

    function addOnloadEvent(func){
    var oldOnload = window.onload;
    if(typeof window.onload != 'function') {
        window.onload = func;
    } else {
        window.onload = function() {
            if(oldOnload) {
                oldOnload();
            }
            func();
        }
    }
}

addOnloadEvent(loadIt);
//window.onunload = unLoadIt  //Do the same for unload

    It takes the function name, without () or quotes

    Instead of assigning it directly to the onload property add it as an event listener

    Check this link

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