event

<html>
    <script>
        function alertName(event)
        {
            var trigger = event.srcElement;
            alert('You clicked on ' + trigger.innerHTML);
        }
    <head>
        <title>Event Handler</title>
    </head>
    <body>
        <button onclick="alertName(event)">Button 1</button>
        <button onclick="alertName(event)">Button 2</button>
    </body>
</html>